CN211604853U - Waterproof shell for box transformer - Google Patents

Abstract

The utility model discloses a waterproof shell for a box type transformer, which comprises a box body and an outer cover, wherein the outer cover is arranged into an arc shape with a high middle part and low two sides; the box body comprises a bottom plate, side plates and an accommodating cavity; the outer cover is provided with a cornice and a clamping block; the side plate is of a double-layer shell structure and comprises an outer shell, an inner shell and an interlayer cavity, the outer shell is provided with a vent and a water outlet, and the inner shell is provided with a first limiting block, a second limiting block and a heat absorbing sheet; cover the enclosing cover on the box through the fixture block, prevent that the rainwater from getting into and hold the chamber, waterproof performance is good, heat absorbing sheet on vent and the inner shell on the shell through the curb plate, strengthen the heat dissipation of box, when humid weather, because of the inner shell temperature is higher than the shell, the steam that gets into from the vent can gather earlier on the shell, then discharge from the delivery port, and steam can't get into through the inner shell and hold the chamber, avoid transformer circuit to break down, and the first stopper and the second stopper that set up can avoid the transformer to damage the heat absorbing sheet.

Description

Waterproof shell for box transformer

Technical Field

The utility model relates to a transformer technical field, concretely relates to box transformer is with waterproof shell.

Background

The waterproof shell of the transformer is mainly used for safety protection of an operation transformer site, operation accidents caused by foreign matters such as small animals entering the transformer are avoided, personal safety can be effectively protected, and a certain electromagnetic shielding effect is achieved. Some set up in outdoor transformer waterproof cases, especially southern area, often meet rainwater weather, and the transformer waterproof case on the existing market, its upper cover all is smooth panel type generally, and the structural strength of level panel type upper cover is not high, and the rainwater piles up at the upper cover easily, causes the erosion to the shell easily over time, leads to the shell corrosion even rainwater seepage, exists improved space.

The technical scheme is that the waterproof shell comprises a shell and a shell upper cover arranged on the shell, wherein the shell upper cover is arranged in an arc shape, the center of the arc shape protrudes towards the ground, the shell upper cover is provided with an outer edge protruding out of the shell, the outer edge of the shell upper cover is provided with an eave, the shell is provided with a vent, the vent is provided with a louver with a grid, the grid inclines towards the ground, the shell and the shell upper cover are both provided with reinforcing ribs, and one side of the shell, corresponding to the ground, is provided with channel steel for erection; the waterproof casing of the transformer effectively improves the rainwater-proof capability, and avoids the casing from being corroded or even leaked due to accumulation of rainwater; the problems that exist are that: because its vent is in direct communication with the interior of the housing, moisture can enter the housing from the louvers in wet weather, causing circuit failure.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a waterproof shell for box transformer that waterproof performance is good, avoid steam to get into the box and cause transformer circuit trouble.

In order to solve the technical problem, the technical scheme of the utility model is that: a waterproof shell for a box type transformer comprises a box body and an outer cover arranged on the box body, wherein the outer cover is arranged in an arc shape with a high middle part and low two sides; the box body comprises a bottom plate, four side plates fixed on the bottom plate in a welding mode and an accommodating cavity formed by the bottom plate and the four side plates in a surrounding mode, and the accommodating cavity is used for mounting a transformer; the outer edge of the outer cover extends outwards to the outside of the box body, the lower surface of the outer edge of the outer cover is provided with an eave in a downward protruding mode, the lower surface of the outer cover is provided with four clamping blocks in a downward protruding mode, the four clamping blocks correspond to four side plates of the box body respectively, and the four clamping blocks are located in the eave; the side plate is of a double-layer shell structure and comprises an outer shell, an inner shell and an interlayer cavity, wherein the inner shell is arranged in the outer shell, the interlayer cavity is arranged between the outer shell and the inner shell, the opening of the interlayer cavity is arranged upwards, the outer cover can be covered on the box body through clamping matching of the clamping block and the interlayer cavity, and the accommodating cavity is made into a sealed cavity; the shell is provided with the vent, vent and intermediate layer chamber intercommunication, the lower extreme of shell is provided with the delivery port, the delivery port is used for going out the log raft in intermediate layer chamber, the inner shell orientation is provided with first stopper towards the upper end of the one side that holds the chamber, the inner shell orientation is provided with the second stopper towards the lower extreme of the one side that holds the chamber, the inner shell orientation is provided with a plurality of heat absorption piece towards the one side equidistance that holds the chamber, the heat absorption piece is located between first stopper and the second stopper, first stopper and second stopper are used for preventing that the transformer from damaging the heat absorption piece.

Preferably, the cornice is arranged in an outward inclined manner; namely the center of enclosing cover is kept away from more than the upper end of eaves mouth to the lower extreme of eaves mouth, and this kind of setting can hide the area of rain through the increase and the inclined plane reinforcing transformer waterproof case's of setting drainage performance.

Preferably, the ventilation opening is a louver with a grid, and the grid is inclined towards the ground; on the premise of ensuring ventilation and heat dissipation in the waterproof shell of the transformer, the impurity objects with large block heads are prevented from directly entering the interlayer cavity.

Preferably, the water outlet is arranged obliquely downwards, so that water in the interlayer cavity can be discharged completely.

Preferably, a water shielding coaming is welded and fixed on the outer surface of the shell, surrounds the water outlet and is used for retaining water for the water outlet.

Preferably, the length of the first limiting block facing the inside of the accommodating cavity is greater than the length of the heat absorbing sheet facing the inside of the accommodating cavity, and the structure of the second limiting block is consistent with that of the first limiting block; and the first limiting block and the second limiting block are prevented from colliding and damaging the transformer.

Preferably, the outer surfaces of the first limiting block and the second limiting block are wrapped by rubber buffer layers.

Preferably, a channel steel is welded and fixed on the bottom surface of the bottom plate, and the channel steel is used for erecting a box body; this waterproof case passes through the channel-section steel erects subaerial, avoids the direct and ground contact in bottom of this waterproof case, can prevent to cause the damage to the waterproof case of transformer because of the ground unevenness, can avoid the waterproof case of transformer again long-term and moist ground contact corrosion.

The utility model discloses technical effect mainly embodies: cover the enclosing cover on the box through the fixture block, prevent that the rainwater from getting into and hold the chamber, waterproof performance is good, heat absorbing sheet on vent and the inner shell on the shell through the curb plate, strengthen the heat dissipation of box, when humid weather, because of the inner shell temperature is higher than the shell, the steam that gets into from the vent can gather earlier on the shell, then discharge from the delivery port, and steam can't get into through the inner shell and hold the chamber, avoid transformer circuit to break down, and the first stopper and the second stopper that set up can avoid the transformer to damage the heat absorbing sheet.

Drawings

FIG. 1 is a schematic sectional view of the present invention;

FIG. 2 is a top view of FIG. 1 with the outer cover removed;

FIG. 3 is a schematic structural view of the outer cover;

FIG. 4 is a bottom view of FIG. 3;

FIG. 5 is a schematic view of the structure of FIG. 3 with front and rear cornices removed;

FIG. 6 is a schematic side plate structure of FIG. 1;

fig. 7 is a rear view of fig. 6.

Detailed Description

The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings, so that the technical solution of the present invention can be more easily understood and grasped.

In the present embodiment, it should be understood that the terms "middle", "upper", "lower", "top", "right", "left", "above", "back", "middle", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the present embodiment, if the connection or fixing manner between the components is not specifically described, the connection or fixing manner may be a bolt fixing manner, a pin connecting manner, or the like, which is commonly used in the prior art, and therefore, details thereof are not described in the present embodiment.

As shown in fig. 1-7, a waterproof case for a box transformer comprises a box body 1, and an outer cover 2 arranged on the box body 1, wherein the outer cover 2 is in an arc shape with a high middle and low two sides; the box body 1 comprises a bottom plate 11, four side plates 12 welded and fixed on the bottom plate 11, and an accommodating cavity 13 enclosed by the bottom plate 11 and the four side plates 12, wherein the accommodating cavity 13 is used for installing a transformer; the outer edge of the outer cover 2 extends outwards to the outside of the box body 1, the lower surface of the outer edge of the outer cover 2 protrudes downwards to form an eaves 21, when the weather is rainy, rainwater flows downwards from the center of the outer cover 2 to two sides, and cannot be accumulated on the outer cover 2 in a large amount, and when the rainwater flows downwards, the part of the outer edge of the outer cover 2 protruding out of the box body 1 and the arrangement of the eaves 21 can effectively prevent the rainwater from seeping into the box body 1 from the eaves of the outer cover 2 to cause circuit failure, so that the drainage performance of the waterproof shell of the transformer is enhanced, the lower surface of the outer cover 2 protrudes downwards to form four clamping blocks 22, the four clamping blocks 22 correspond to four side plates of the box body 1 respectively, and the four clamping blocks 22 are located in the eaves 21; a channel steel 111 is fixedly welded to the bottom surface of the bottom plate 11, and the channel steel 11 is used for erecting a box body 1; this waterproof case passes through channel-section steel 111 erects subaerial, avoids the direct and ground contact in bottom of this waterproof case, can prevent to cause the damage to the waterproof case of transformer because of the ground unevenness, can avoid the waterproof case of transformer again long-term and moist ground contact corrosion. The side plate 12 is a double-layer shell structure, the side plate 12 includes an outer shell 121, an inner shell 122 disposed in the outer shell 121, and an interlayer cavity 123 disposed between the outer shell 121 and the inner shell 122, the interlayer cavity 123 is disposed with an upward opening, the outer cover 2 can be covered on the box body 1 through the clamping of the clamping block 22 and the interlayer cavity 123, and the accommodating cavity 123 becomes a sealed cavity.

The shell 121 is provided with a vent 1211, the vent 1211 is communicated with the interlayer cavity 123, the lower end of the shell 121 is provided with a water outlet 1212, the water outlet 1212 is used for discharging water in the interlayer cavity 123, preferably, a water shielding surrounding plate 1213 is welded and fixed on the outer surface of the shell 121, the water shielding surrounding plate 1213 surrounds the water outlet 1212, and the water shielding surrounding plate 1213 is used for blocking water for the water outlet 1212. The upper end of one side of the inner shell 122 facing the accommodating cavity 13 is provided with a first limiting block 1221, the lower end of one side of the inner shell 122 facing the accommodating cavity 13 is provided with a second limiting block 1222, the side of the inner shell 122 facing the accommodating cavity 13 is equidistantly provided with a plurality of heat absorbing sheets 1223, the heat absorbing sheets 1223 are located between the first limiting block 1221 and the second limiting block 1222, and the first limiting block 1221 and the second limiting block 1222 are used for preventing the transformer from damaging the heat absorbing sheets 1223.

In this embodiment, the cornice 21 is inclined outward; that is, the lower end of the cornice 21 is more distant from the center of the outer cover 2 than the upper end of the cornice 21, and this arrangement can enhance the drainage performance of the waterproof case of the transformer by increasing the area of shielding rain and the inclined plane of the arrangement.

In this embodiment, the ventilation opening 1211 is a louver with a grill, which is inclined toward the ground; on the premise of ensuring ventilation and heat dissipation in the waterproof shell of the transformer, the impurity objects with large block heads are prevented from directly entering the interlayer cavity 123.

In this embodiment, the water outlet 1212 is disposed obliquely downward, that is, the water outlet 1212 is disposed toward the bottom surface, so as to facilitate the water in the interlayer cavity 123 to be completely discharged.

In this embodiment, the length of the first stopper 1221 facing the inside of the accommodating cavity 13 is greater than the length of the heat sink 1223 facing the inside of the accommodating cavity 13, and the structure of the second stopper 1222 is the same as that of the first stopper 1221. When the waterproof shell is used for mounting the transformer, the transformer cannot damage the heat absorbing sheets, and more specifically, when the transformer is mounted downwards from the waterproof shell, the outward protruding length of the first limiting block 1221 is greater than the outward protruding length of the heat absorbing sheets 1223, so that the outer surface of the transformer cannot be in contact with one surface of the heat absorbing sheets 1223 facing the inside of the accommodating cavity 13, and the transformer is prevented from damaging the heat absorbing sheets 1223.

In this embodiment, the outer surfaces of the first stopper 1221 and the second stopper 1222 are both wrapped by a rubber buffer layer 101. The first limit block 1221 and the second limit block 1222 are prevented from colliding with each other to damage the transformer.

In this embodiment, the first limiting plate 1221, the second limiting plate 1222, and the heat absorbing plate 1223 are all welded and fixed to the inner shell 123, and the welding sequence may be welding the second limiting plate 1222 first, welding the heat absorbing plate 123 second, and welding the first limiting plate 1221 last.

In this embodiment, the inner shell 122 of the side plate 12 is made of copper alloy, which has ultrahigh thermal conductivity.

The cable outlet of the transformer can be arranged on the bottom plate 11, and then the cable of the transformer is pulled out, and the waterproof problem of the outlet can be solved by padding a waterproof gasket at the cable outlet, because the waterproof gasket is not the invention point of the shell and belongs to the known knowledge in the known field, therefore, how to carry out cable outlet after the waterproof shell is used is not described in detail herein.

The outer cover waterproof principle: when meetting rainwater weather, the rainwater flows down to both sides from enclosing cover 2 center, can not pile up in a large number on enclosing cover 2, and when the rainwater flows down, outside along salient, eaves 21 and fixture block 22 set up can effectively avoid the rainwater to ooze 1 insidely of box from enclosing cover 2 eaves limit and cause circuit fault, the drainage performance of the waterproof shell of transformer has been strengthened, the hidden danger of leaking water or even electric leakage in to box 1 has been stopped, its rain-proof ability has effectively been improved, avoid piling up because of the rainwater and lead to the shell to corrode or even the seepage.

Side plate waterproof principle: in humid weather, steam gets into the intermediate layer chamber 123 of curb plate 12 from the shutter in, because inner shell 122 is provided with heat absorbing sheet 1223 towards the one side that holds chamber 13, heat absorbing sheet 1223 is the heat transfer that holds chamber 13 to inner shell 122, so the temperature on the inner shell 122 is higher than the temperature of shell 121, the steam of intermediate layer chamber 123 can be gathered into the water droplet at the inner wall of shell 121, then flow down along the inner wall of shell 121 under the effect of gravity, and discharge from the delivery port 1212 that sets up at the shell 121 lower extreme, prevent that steam from gathering in a large number of intermediate layer chamber 123, and because there is inner shell 122 between holding chamber 13 and the intermediate layer chamber 123, so steam can not reach and hold in the chamber 13, thereby avoid the transformer circuit fault to appear.

The utility model discloses technical effect mainly embodies: cover the enclosing cover on the box through the fixture block, prevent that the rainwater from getting into and hold the chamber, waterproof performance is good, heat absorbing sheet on vent and the inner shell on the shell through the curb plate, strengthen the heat dissipation of box, when humid weather, because of the inner shell temperature is higher than the shell, the steam that gets into from the vent can gather earlier on the shell, then discharge from the delivery port, and steam can't get into through the inner shell and hold the chamber, avoid transformer circuit to break down, and the first stopper and the second stopper that set up can avoid the transformer to damage the heat absorbing sheet.

Of course, the above is only a typical example of the present invention, and besides, the present invention can also have other various specific embodiments, and all technical solutions adopting equivalent replacement or equivalent transformation are all within the scope of the present invention as claimed.

Claims (8)

1. A waterproof shell for a box type transformer comprises a box body and an outer cover arranged on the box body, wherein the outer cover is arranged in an arc shape with a high middle part and low two sides; the box body comprises a bottom plate, four side plates fixed on the bottom plate in a welding mode and an accommodating cavity formed by the bottom plate and the four side plates in a surrounding mode, and the accommodating cavity is used for mounting a transformer; the outer border of enclosing cover outwards extends to outside the box, the lower surface of the outer border of enclosing cover is provided with eaves mouth, its characterized in that by the protrusion down: the lower surface of the outer cover is provided with four clamping blocks in a downward protruding mode, the four clamping blocks correspond to four side plates of the box body respectively, and the four clamping blocks are located in the cornice; the side plate is of a double-layer shell structure and comprises an outer shell, an inner shell and an interlayer cavity, wherein the inner shell is arranged in the outer shell, the interlayer cavity is arranged between the outer shell and the inner shell, the opening of the interlayer cavity is arranged upwards, the outer cover can be covered on the box body through clamping matching of the clamping block and the interlayer cavity, and the accommodating cavity is made into a sealed cavity; the shell is provided with the vent, vent and intermediate layer chamber intercommunication, the lower extreme of shell is provided with the delivery port, the delivery port is used for going out the log raft in intermediate layer chamber, the inner shell orientation is provided with first stopper towards the upper end of the one side that holds the chamber, the inner shell orientation is provided with the second stopper towards the lower extreme of the one side that holds the chamber, the inner shell orientation is provided with a plurality of heat absorption piece towards the one side equidistance that holds the chamber, the heat absorption piece is located between first stopper and the second stopper, first stopper and second stopper are used for preventing that the transformer from damaging the heat absorption piece.

2. The waterproof case for a tank transformer as claimed in claim 1, wherein: the eaves mouth sets up for outwards inclining.

3. The waterproof case for a tank transformer as claimed in claim 1, wherein: the ventilation opening is a louver with a grid, and the grid inclines towards the ground.

4. The waterproof case for a tank transformer as claimed in claim 1, wherein: the water outlet is arranged obliquely downwards.

5. The waterproof case for a tank transformer as claimed in claim 1, wherein: and a water shielding coaming is welded and fixed on the outer surface of the shell and surrounds the water outlet.

6. The waterproof case for a tank transformer as claimed in claim 1, wherein: the length of the first limiting block towards the inside of the containing cavity is larger than that of the heat absorbing sheet towards the inside of the containing cavity, and the structure of the second limiting block is consistent with that of the first limiting block.

7. The waterproof case for a tank transformer as claimed in claim 1, wherein: the outer surfaces of the first limiting block and the second limiting block are wrapped with rubber buffer layers.

8. The waterproof case for a tank transformer as claimed in claim 1, wherein: and channel steel for erecting the box body is fixedly welded on the bottom surface of the bottom plate.

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