CN218019705U

CN218019705U - Pouring mold for electricity larceny prevention mutual inductor

Info

Publication number: CN218019705U
Application number: CN202221310126.5U
Authority: CN
Inventors: 裴庆虎; 陈金业; 刘中华; 刘瑶; 陈玉泽; 王力崇
Original assignee: Hebei Shenke Electric Power Co ltd
Current assignee: Hebei Shenke Electric Power Co ltd
Priority date: 2022-05-27
Filing date: 2022-05-27
Publication date: 2022-12-13
Anticipated expiration: 2032-05-27

Abstract

The utility model provides an anti-electricity-theft transformer is with casting mold, relates to mutual-inductor technical field, the right board that the mould includes front bezel, back plate, left board, L type, has the upper plate and the hypoplastron of pouring hole and encloses and form the box structure, the contained angle department of left side board and upper plate is provided with the cushion, the cushion upper end is inboard fixed with the upper plate, and the interval sets up between cushion and the left board, front bezel and back plate are laminated respectively to cushion front end and rear end, all be provided with sealed annular on the relative one side of upper plate and hypoplastron, sealed annular is the same with the outward flange shape of upper plate and hypoplastron respectively, and this mould is reserving out the pouring basin on the pouring body through increasing the cushion, and after the pouring is accomplished, behind the installation circuit board of pouring basin, carrying out the secondary pouring to the pouring basin, so need carry out twice pouring because of the difference of pouring material for anti-electricity-theft transformer, this structure satisfies anti-electricity-theft transformer pouring demand completely.

Description

Pouring mold for electricity larceny prevention mutual inductor

Technical Field

The invention relates to the technical field of transformers, in particular to a pouring mold for an electricity larceny prevention transformer.

Background

The current transformer converts different rated primary currents into standard rated secondary currents by utilizing the principle of electromagnetic induction, is mainly used for metering, measuring and electromechanical protection in a power system distribution network, and is provided with an electricity larceny prevention measure.

When the mutual inductor is manufactured, after a primary winding and a secondary winding are wound, the primary winding and the secondary winding are packaged by epoxy resin to form a pouring body, the epoxy resin is poured through a pouring mold, and compared with a conventional mutual inductor, the anti-electricity-theft mutual inductor is structurally changed, so that the conventional pouring mold is not suitable.

Disclosure of Invention

The invention aims to solve the problems and provides a pouring mold for an electricity larceny prevention mutual inductor, wherein a position is reserved for an added structure of the electricity larceny prevention mutual inductor by adding a cushion block, so that the pouring requirement of the electricity larceny prevention mutual inductor is met.

The invention adopts the technical scheme that the pouring mold for the electricity stealing prevention transformer is provided, and comprises a front plate, a rear plate, a left plate, an L-shaped right plate, an upper plate with a pouring hole and a lower plate which are combined to form a box body structure in an enclosing manner, wherein a cushion block is arranged at the included angle between the left plate and the upper plate, the upper end of the cushion block is fixed with the inner side of the upper plate, and the cushion block and the left plate are arranged at intervals.

The front end and the rear end of the cushion block are respectively attached to the front plate and the rear plate.

All be provided with the seal ring groove on the relative one side of upper plate and hypoplastron, the seal ring groove is the same with the outward flange shape of upper plate and hypoplastron respectively.

The distance between the sealing ring groove and the periphery of the upper plate or the lower plate is smaller than the thickness of the front plate, the rear plate, the left plate and the right plate.

The middle part of the upper plate is provided with a long slotted hole, and the bottom end of the lower plate is provided with a support column.

And one surface of the lower plate, which is opposite to the upper plate, is provided with a limiting groove, and a limiting column is arranged in the limiting groove.

And the outer edges of the front plate, the rear plate, the left plate, the right plate, the upper plate and the lower plate are provided with form removal grooves.

And a boss is arranged on the opposite surface of the left plate and the right plate.

The distance between right side board upper portion and the left board is greater than the distance between right side board lower part and the left board, the contained angle department of right side board and upper plate sets up the backing plate, be provided with mounting groove and be provided with a plurality of pin holes in the mounting groove on the backing plate, the backing plate sets up on the face of buckling of right board.

The beneficial effects of the invention are:

1. the mold structure is suitable for an electricity larceny prevention mutual inductor, the electricity larceny prevention mutual inductor is a structure that a monitoring coil and a circuit board are added on the basis of a conventional mutual inductor, a pouring groove is reserved on a pouring body through adding a cushion block, after pouring is finished, the circuit board is installed in the pouring groove, secondary pouring is carried out on the pouring groove, the electricity larceny prevention mutual inductor needs to be poured twice due to different pouring materials, and the structure completely meets the pouring requirement of the electricity larceny prevention mutual inductor;

2. the front plate, the rear plate, the left plate and the right plate are arranged between the upper plate and the lower plate, the sealing ring grooves are arranged on the upper plate and the lower plate and are respectively attached to fixed positions of the front plate, the rear plate, the left plate and the right plate, the sealing ring grooves are not exposed in an inner cavity of the mold, the edges of poured casting bodies can be more regular, bolts are adopted in a fixing mode, the disassembly and the assembly are convenient, sealing strips are arranged in the sealing ring grooves, and the sealing performance of the mold is guaranteed.

Drawings

FIG. 1 is a schematic structural view of a mold;

FIG. 2 is a schematic view of the structure of the interior of the mold;

FIG. 3 is a schematic view of the internal structure of the mold in another orientation;

FIG. 4 is a schematic view of the internal structure of the mold in another direction

In the attached drawing, the structure comprises a front plate 1, a rear plate 2, a left plate 3, a right plate 4, a pouring hole 5, a pouring hole 6, an upper plate 7, a lower plate 8, a cushion block 9, a sealing ring groove 10, a long groove hole 11, a support column 12, a limiting groove 13, a demoulding groove 14, a boss 15 and a base plate.

Detailed Description

As shown in fig. 1-4, the utility model provides an anti-electricity-theft is casting mold for mutual-inductor, the mould includes the right board 4 of front bezel 1, back plate 2, left board 3, L type, has upper plate 6 and the hypoplastron 7 of plug hole 5 and encloses and form the box structure, the contained angle department of left side board 3 and upper plate 6 is provided with cushion 8, cushion 8 upper end and 6 inboard fixed of upper plate, interval setting between cushion 8 and the left board 3.

The anti-electricity-theft transformer is a box structure, a cushion block 8 is additionally arranged at the corner of a left plate 3 and an upper plate 6, a groove is reserved on a casting body after casting is finished, the anti-electricity-theft transformer is used for installing the circuit board of the anti-electricity-theft transformer, and the groove is subjected to secondary casting after the installation is finished.

As shown in fig. 3, the front and rear ends of the spacer 8 are respectively attached to the front and

rear panels

1 and 2.

The reserved groove is in a long groove shape, and the circuit board is convenient to operate and mount.

As shown in fig. 2-3, the opposite surfaces of the upper plate 6 and the lower plate 7 are provided with sealing ring grooves 9, and the sealing ring grooves 9 have the same shape as the outer edges of the upper plate 6 and the lower plate 7.

When the mould is assembled, the upper end and the lower end of the front plate 1, the rear plate 2, the left plate 3 and the right plate 4 respectively abut against the lower end of the upper plate 6 and the upper end of the lower plate 7, the mould is sealed by the mode of arranging the sealing ring groove 9 and installing the sealing ring in the sealing ring groove 9, and the sealing performance of the mould is improved.

As shown in fig. 2-3, the distance between the sealing ring groove 9 and the periphery of the upper plate 6 or the lower plate 7 is smaller than the thickness of the front plate 1, the rear plate 2, the left plate 3 and the right plate 4.

The sealing ring groove 9 is supported and covered by the upper and lower ends of the front plate 1, the rear plate 2, the left plate 3 and the right plate 4, and does not leak out in the inner cavity of the mold, so that the edge of the cast body after casting is more regular, and the sealing performance of the mold is further improved by extruding the front plate 1, the rear plate 2, the left plate 3, the right plate 4, the upper plate 6 and the lower plate 7.

As shown in fig. 4, the upper plate 6 is provided with a slotted hole 10 at the middle part, and the lower plate 7 is provided with a support post 11 at the bottom end.

The long slotted hole 10 is used for installing a mounting rack of the secondary winding before pouring, and is more convenient, and the support column 11 is used for supporting a mould.

As shown in fig. 2, a limiting groove 12 is disposed on a surface of the lower plate 7 opposite to the upper plate 6, and a limiting post is disposed in the limiting groove 12.

The limiting groove 12 and the limiting column are used for mounting the primary terminal connecting plate before pouring, and the mounting is more convenient.

As shown in fig. 1-2, the outer side edges of the front plate 1, the rear plate 2, the left plate 3, the right plate 4, the upper plate 6 and the lower plate 7 are provided with stripping grooves 13.

The form removal groove 13 is convenient for form removal after pouring is completed and is convenient for prying.

As shown in fig. 3-4, bosses 14 are provided on opposite sides of the left and

right plates

3, 4.

The boss 14 enables strip-shaped grooves to be formed in two sides of the poured body after pouring, and manual lifting and placing are facilitated.

As shown in fig. 3, the distance between the upper portion of the right plate 4 and the left plate 3 is greater than the distance between the lower portion of the right plate 4 and the left plate 3, a backing plate 15 is arranged at the included angle between the right plate 4 and the upper plate 6, a plurality of pin holes are arranged in the mounting groove and the mounting groove arranged on the backing plate 15, and the backing plate 15 is arranged on the bending surface of the right plate 4.

The upper end of a poured body after pouring is actually the lower end of a product, the poured body is L-shaped after pouring, the backing plate 15 is used for fixing the secondary terminal connecting plate, the secondary terminal is led out to the extending part of the side face of the poured body, and later-stage wiring is convenient.

Claims

1. The utility model provides an anti-electricity-theft is casting mold for mutual-inductor, the mould includes right board (4) of front bezel (1), back plate (2), left board (3), L type, has upper plate (6) and hypoplastron (7) of pouring hole (5) and encloses and form the box structure, its characterized in that: the angle between the left plate (3) and the upper plate (6) is provided with a cushion block (8), the upper end of the cushion block (8) is fixed to the inner side of the upper plate (6), and the cushion block (8) and the left plate (3) are arranged at intervals.

2. The casting mold for electricity larceny prevention mutual inductor according to claim 1, characterized in that: the front end and the rear end of the cushion block (8) are respectively attached to the front plate (1) and the rear plate (2).

3. The casting mold for electricity larceny prevention mutual inductor according to claim 1, characterized in that: all be provided with sealing ring groove (9) on the relative one side of upper plate (6) and hypoplastron (7), sealing ring groove (9) are the same with the outward flange shape of upper plate (6) and hypoplastron (7) respectively.

4. The casting mold for electricity larceny prevention mutual inductor according to claim 3, characterized in that: the distance between the sealing ring groove (9) and the periphery of the upper plate (6) or the lower plate (7) is smaller than the thickness of the front plate (1), the thickness of the rear plate (2), the thickness of the left plate (3) and the thickness of the right plate (4).

5. The casting mold for electricity larceny prevention mutual inductor according to claim 1, characterized in that: the middle part of the upper plate (6) is provided with a long slotted hole (10), and the bottom end of the lower plate (7) is provided with a support pillar (11).

6. The casting mold for electricity larceny prevention mutual inductor according to claim 1, characterized in that: the side, opposite to the upper plate (6), of the lower plate (7) is provided with a limiting groove (12), and a limiting column is arranged in the limiting groove (12).

7. The casting mold for electricity larceny prevention mutual inductor according to claim 1, characterized in that: and the outer side edges of the front plate (1), the rear plate (2), the left plate (3), the right plate (4), the upper plate (6) and the lower plate (7) are provided with form removal grooves (13).

8. The casting mold for electricity larceny prevention mutual inductor according to claim 1, characterized in that: and a boss (14) is arranged on one surface of the left plate (3) opposite to the right plate (4).

9. The casting mold for electricity larceny prevention mutual inductor according to claim 1, characterized in that: the distance between right side board (4) upper portion and left board (3) is greater than the distance between right side board (4) lower part and left board (3), the contained angle department of right side board (4) and upper plate (6) sets up backing plate (15), be provided with mounting groove and mounting groove on backing plate (15) and be provided with a plurality of pin holes in, backing plate (15) set up on the face of buckling of right side board (4).