CN212485068U

CN212485068U - Mutual inductor shell sealing structure

Info

Publication number: CN212485068U
Application number: CN202021170896.5U
Authority: CN
Inventors: 殷方亮
Original assignee: Yangzhou Anshun Electrical Co ltd
Current assignee: Yangzhou Anshun Electrical Co ltd
Priority date: 2020-06-22
Filing date: 2020-06-22
Publication date: 2021-02-05
Anticipated expiration: 2030-06-22

Abstract

The utility model relates to a seal structure technical field just discloses a mutual-inductor housing seal structure, including mutual-inductor main part and mutual-inductor casing, the mutual-inductor main part sets up inside the mutual-inductor casing, and the mutual-inductor casing is from last to dividing into cap and drain pan down in proper order, and the drain pan inner wall is provided with the side insulating layer, and the cap bottom surface is provided with the top surface insulating layer. According to the mutual inductor shell sealing structure, the shell cover can be accurately butted with the bottom shell through the alignment of the clamping grooves and the clamping blocks, and the shell cover can be tightly clamped with the bottom shell through the position relation between the telescopic piece and the telescopic hole II; the triangular handle is pulled outwards to pull the telescopic piece out of the telescopic hole II on the side face of the shell cover, the shell cover is separated from the bottom shell through the rectangular handle at the top of the shell cover, and the purpose of conveniently opening the shell for inspection or maintenance is achieved through a simple mechanical structure; the inner part of the transformer shell is isolated from the outside by extruding the convex ring and the two sealing rings, so that the accuracy and the reliability of the transformer main body are ensured.

Description

Mutual inductor shell sealing structure

Technical Field

The utility model relates to a seal structure technical field specifically is a mutual-inductor shell seal structure.

Background

In order to transmit electric energy, an electric power system usually adopts an alternating voltage and large current loop to transmit the electric power to a user, and cannot use an instrument to directly measure the electric power. The mutual inductor has the functions of reducing alternating voltage and large current to values which can be directly measured by the instrument according to a proportion, facilitating the direct measurement of the instrument and simultaneously providing power for relay protection and automatic devices, so the performance of the mutual inductor is good or bad, the accuracy of measurement and metering of a power system and the reliability of action of a relay protection device are directly influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a mutual-inductor shell seal structure to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a mutual inductor shell sealing structure comprises a mutual inductor main body and a mutual inductor shell, wherein the mutual inductor main body is arranged inside the mutual inductor shell, the mutual inductor shell is sequentially divided into a shell cover and a bottom shell from top to bottom, a side surface insulating layer is arranged on the inner wall of the bottom shell, a top surface insulating layer is arranged on the bottom surface of the shell cover, four sides of the shell cover are obliquely inwards arranged, the corresponding positions of the inner wall of the bottom shell and the side surface of the shell cover are obliquely arranged, the oblique surfaces of the inner wall of the bottom shell are matched with the oblique surfaces of the side surface of the shell cover, a first telescopic hole is horizontally arranged inside the bottom shell, two telescopic holes are a group and four groups, the first telescopic holes of the four groups are uniformly distributed on the same installation horizontal plane inside the bottom shell, a second telescopic hole is arranged at the corresponding position of the, one end of the telescopic rod is fixedly connected with one side of the telescopic piece, the other end of the telescopic rod penetrates through the first telescopic hole and extends to the outer side of the bottom shell, the telescopic piece is far away from the end cover and is fixedly connected with the inner end face of the first telescopic hole through a spring fixedly connected with the end face of the first telescopic hole, the spring sleeve is arranged on the surface of the telescopic rod, a circle of end-to-end convex rings are arranged at the bottom of the top surface insulating layer, the top surfaces of the convex rings are fixedly connected with the bottom surface of the.

Preferably, the top surface of the bottom shell is provided with four clamping grooves, the four clamping grooves are uniformly formed in the top surface of the bottom shell, four sides of the shell cover are fixedly connected with one ends of the clamping blocks, the four clamping blocks are uniformly arranged on the four sides of the shell cover, and the clamping blocks correspond to the clamping grooves one to one.

Preferably, two adjacent telescopic links are fixedly connected through a connecting rod, a triangular handle is sleeved on the surface of the connecting rod, and a rectangular handle is arranged on the top surface of the shell cover.

Preferably, the sealing rings are two in size, the sealing ring sleeve is arranged on the outer side of the small sealing ring, and the bottom surfaces of the sealing rings are fixedly connected with the top surface of the side insulating layer.

Preferably, when the shell cover is covered on the bottom shell, the convex ring is positioned between the two sealing rings.

Preferably, the surfaces of the two sealing rings are treated by impregnating insulating paint, and the side surface insulating layer and the top surface insulating layer are made of common insulating materials by impregnating insulating paint.

Compared with the prior art, the beneficial effects of the utility model are that: according to the mutual inductor shell sealing structure, the shell cover can be accurately butted with the bottom shell through the alignment of the clamping grooves and the clamping blocks, and the shell cover can be tightly clamped with the bottom shell through the position relation between the telescopic piece and the telescopic hole II; the triangular handle is pulled outwards to pull the telescopic piece out of the telescopic hole II on the side face of the shell cover, the shell cover is separated from the bottom shell through the rectangular handle at the top of the shell cover, and the purpose of conveniently opening the shell for inspection or maintenance is achieved through a simple mechanical structure; the inner part of the transformer shell is isolated from the outside by extruding the convex ring and the two sealing rings, so that the accuracy and the reliability of the transformer main body are ensured.

Drawings

FIG. 1 is a front sectional view of the overall structure of the present invention;

FIG. 2 is an enlarged view of the area A of FIG. 1 according to the present invention;

fig. 3 is a top view of the bottom case structure of the present invention;

FIG. 4 is a top view of the overall structure of the present invention;

fig. 5 is an enlarged view of the area B in fig. 3 according to the present invention.

In the figure: the transformer comprises a bottom shell 1, a transformer body 2, a shell cover 3, a side insulating layer 4, a rectangular handle 5, a top insulating layer 6, a convex ring 7, a sealing ring 8, a telescopic hole I9, a telescopic piece 10, a telescopic rod 11, a triangular handle 12, a telescopic hole II 13, a clamping groove 14, a clamping block 15 and a connecting rod 16.

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.

Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-5, the present invention provides a technical solution: a mutual inductor shell sealing structure comprises a mutual inductor main body 2 and a mutual inductor shell, wherein the mutual inductor main body 2 is arranged inside the mutual inductor shell, the mutual inductor shell is sequentially divided into a shell cover 3 and a bottom shell 1 from top to bottom, a side surface insulating layer 4 is arranged on the inner wall of the bottom shell 1, a top surface insulating layer 6 is arranged on the bottom surface of the shell cover 3, the side surface insulating layer 4 and the top surface insulating layer 6 are made of common insulating material impregnated insulating paint, four sides of the shell cover 3 are arranged in an inclined plane which inclines inwards, the corresponding positions of the inner wall of the bottom shell 1 and the side surface of the shell cover 3 are arranged in an inclined plane, the inclined plane of the inner wall of the bottom shell 1 is matched with the inclined plane of the side surface of the shell cover 3, the top surface of the bottom shell 1 is provided with four clamping grooves 14, the four clamping grooves 14, the inner part of the bottom shell 1 is horizontally provided with a first telescopic hole 9, two first telescopic holes 9 are a group and have four groups, the first telescopic holes 9 of the four groups are uniformly distributed on the same installation horizontal plane in the bottom shell 1, the side surface of the shell cover 3 is provided with a second telescopic hole 13 corresponding to the first telescopic hole 9, the inner part of the first telescopic hole 9 is horizontally provided with a telescopic piece 10 and a telescopic rod 11, the telescopic piece 10 is positioned at one end close to the shell cover 3, one end of the telescopic rod 11 is fixedly connected with one side of the telescopic piece 10, the other end of the telescopic rod 11 penetrates through the first telescopic hole 9 and extends to the outer side of the bottom shell 1, one side of the telescopic piece 10, far away from the shell cover 3, is fixedly connected with the inner end surface of the first telescopic hole 9 through a fixedly connected spring, the spring is sleeved on the surface of the telescopic rod 11, the sealing structure of the shell body of the mutual inductor enables the, two adjacent telescopic rods 11 are fixedly connected through a connecting rod 16, a triangular handle 12 is sleeved on the surface of the connecting rod 16, a rectangular handle 5 is arranged on the top surface of the shell cover 3, the telescopic piece 10 is pulled out from the inside of a telescopic hole II 13 on the side surface of the shell cover 3 by pulling the triangular handle 12 outwards, the shell cover 3 is separated from the bottom shell 1 through the rectangular handle 5 on the top of the shell cover 3, the purpose of facilitating shell opening inspection or maintenance is achieved through a simple mechanical structure, a circle of convex rings 7 connected end to end is arranged at the bottom of a top surface insulating layer 6, the top surfaces of the convex rings 7 are fixedly connected with the bottom surface of a top surface insulating layer 6, sealing rings 8 are arranged on the top surface of the side surface insulating layer 4, the sealing rings 8 are two in size, the large sealing rings 8 are sleeved on the outer sides of the small sealing rings 8, the bottom surfaces of the two sealing, the surfaces of the two sealing rings 8 are treated by impregnating insulating paint, and the inside of the transformer shell is isolated from the outside by extruding the convex ring 7 and the two sealing rings 8, so that the accuracy and the reliability of the transformer main body are ensured.

During the use, align through draw-in groove 14 and fixture block 15 and make cap 3 can be accurate dock with drain pan 1, elastic potential energy through the spring makes inside telescopic part 10 one end gets into two 13 telescopic holes, make cap 3 can with drain pan 1 inseparable joint, utilize extrusion between bulge loop 7 and two sealing washers 8 to make inside and external the keeping apart of this mutual-inductor casing, guarantee the accuracy and the reliability of mutual-inductor main part, when meetting needs division shell inspection or maintenance, pull out through two 13 inside pulls out of telescopic hole of 3 sides of telescopic part 10 from cap 3 through triangle handle 12 outside, rectangle handle 5 at 3 tops of rethread cap separates cap 3 and drain pan 1.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a mutual-inductor casing seal structure, includes mutual-inductor main part (2) and mutual-inductor casing, mutual-inductor main part (2) set up inside the mutual-inductor casing, its characterized in that: the mutual inductor shell is sequentially divided into a shell cover (3) and a bottom shell (1) from top to bottom, a side surface insulating layer (4) is arranged on the inner wall of the bottom shell (1), a top surface insulating layer (6) is arranged on the bottom surface of the shell cover (3), four sides of the shell cover (3) are inclined surfaces which are inclined inwards, the positions, corresponding to the side surfaces of the shell cover (3), of the inner wall of the bottom shell (1) are inclined surfaces, the inclined surfaces of the inner wall of the bottom shell (1) are matched with the inclined surfaces of the side surfaces of the shell cover (3), a first telescopic hole (9) is horizontally arranged in the bottom shell (1), two telescopic holes (9) are divided into four groups, the four groups of the telescopic holes (9) are uniformly distributed on the same installation horizontal plane in the bottom shell (1), a second telescopic hole (13) is arranged at the position, corresponding to the first telescopic hole (9), a telescopic piece (10) and, expansion piece (10) are located and are close to cap (3) one end, telescopic link (11) one end and expansion piece (10) one side fixed connection, telescopic link (11) other end runs through flexible hole (9) and extends to drain pan (1) outside, end fixed connection in cap (3) one side and flexible hole (9) is kept away from in expansion piece (10), the spring housing is established on telescopic link (11) surface, top surface insulating layer (6) bottom is provided with protruding ring (7) of round end to end, protruding ring (7) top surface and top surface insulating layer (6) bottom surface fixed connection, side insulating layer (4) top surface is provided with sealing washer (8).

2. The transformer housing seal structure of claim 1, wherein: the clamping grooves (14) are formed in the top surface of the bottom shell (1), the number of the clamping grooves (14) is four, the four clamping grooves (14) are uniformly formed in the top surface of the bottom shell (1), the four sides of the shell cover (3) are fixedly connected with one ends of clamping blocks (15), the number of the clamping blocks (15) is four, the four clamping blocks (15) are uniformly arranged on the four sides of the shell cover (3), and the clamping blocks (15) correspond to the clamping grooves (14) one to one.

3. The transformer housing seal structure of claim 1, wherein: adjacent two through connecting rod (16) fixed connection between telescopic link (11), connecting rod (16) surface cover is equipped with triangle handle (12), cap (3) top surface is provided with rectangle handle (5).

4. The transformer housing seal structure of claim 1, wherein: the sealing ring (8) is big or small, the sealing ring (8) is sleeved on the outer side of the small sealing ring (8), and the bottom surface of the sealing ring (8) is fixedly connected with the top surface of the side insulating layer (4).

5. The transformer housing seal structure of claim 4, wherein: when the shell cover (3) covers the upper part of the bottom shell (1), the convex ring (7) is positioned between the two sealing rings (8).

6. The transformer housing seal structure of claim 1, wherein: the surfaces of the two sealing rings (8) are treated by impregnating insulating paint, and the side surface insulating layer (4) and the top surface insulating layer (6) are made of common insulating material impregnating insulating paint.