Welding and positioning tool for primary support of voltage transformer

Abstract

The utility model provides a welding and positioning tool for a primary support of a voltage transformer. The voltage transformer comprises a transformer iron core, a transformer coil and the primary support. The positioning tool comprises a welding positioning plate and a transformer body positioning plate; a mutual inductor coil is arranged on the mutual inductor iron core, and a primary bracket is arranged on the mutual inductor coil; an annular groove is formed in the outer diameter of the mutual inductor coil in the circumferential direction, an inner concave arc matched with the annular groove is arranged on one side of the welding positioning plate, the mutual inductor coil is sleeved with the welding positioning plate, and the inner concave arc is arranged in the annular groove; a through hole is formed in the welding positioning plate, and the primary bracket is connected with the welding positioning plate through the through hole; the transformer iron core is arranged on the transformer body positioning plate; the primary support and the coil can be accurately positioned and pressed in the process of actually welding the primary support, so that field personnel can operate more flexibly in the welding process, the working efficiency and the safety coefficient are increased, meanwhile, the coil is convenient to disassemble and assemble after welding, and the quality and the accuracy of products are guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of the screen welding positioning plate, especially a voltage transformer primary support welding positioning tool. BACKGROUND

[0002] The line package of the voltage transformer is movable in the welding process of the traditional primary support, which leads to instability in the operation process, and the operator holds the electric soldering iron with one hand and holds the welding wire with the other hand, the line package rolls back and forth, the support cannot be compressed on it and is easy to be inclined, which leads to the difficulty of operation, and the welding is inclined and not firm, the rework rate is high, and some operators even need help from others, which consumes a lot of time and manpower. SUMMARY

[0003] In view of the above problems, the purpose of the present application is to provide a voltage transformer primary support welding positioning tool, which can accurately position and compress the primary support and the line package, so that the on-site personnel can operate more flexibly in welding, increase the work efficiency and safety factor, and facilitate the disassembly of the line package after welding, which is conducive to ensuring the quality and accuracy of the product, and realizing the screen welding positioning plate of the batch production of the voltage transformer primary support.

[0004] To achieve part or all of the above purposes or other purposes, the present application provides the following technical solution: a voltage transformer primary support welding positioning tool, the voltage transformer comprising a transformer core, a transformer line package and a primary support; the positioning tool comprising a welding positioning plate and a bottom positioning plate; the transformer core is provided with a transformer line package, and the transformer line package is provided with a primary support; the outer diameter of the transformer line package is provided with an annular groove in the circumferential direction, one side of the welding positioning plate is provided with an inner concave arc matched with the annular groove, the welding positioning plate is sleeved on the transformer line package, and the inner concave arc is arranged in the annular groove; the welding positioning plate is provided with a through hole, and the primary support is connected with the welding positioning plate through the through hole; the transformer core is arranged on the bottom positioning plate.

[0005] Further, the voltage transformer has two, a first voltage transformer and a second voltage transformer; the first voltage transformer and the second voltage transformer are arranged in parallel on the bottom positioning plate; a first primary support and a second primary support are arranged on the first voltage transformer, and a third primary support and a fourth primary support are arranged on the second voltage transformer; the first primary support and the fourth primary support are arranged on one side of the welding positioning plate, and the second primary support and the third primary support are arranged on the other side of the welding positioning plate; two inner concave arcs matched with the annular groove are arranged on one side of the welding positioning plate, and a notch is arranged on the same side of the welding positioning plate, and the notch is located between the two inner concave arcs; the second primary support and the third primary support are connected with the welding positioning plate through the notch; the through hole has three, a first through hole, a second through hole and a third through hole, the first through hole is connected with the first primary support, the second through hole is connected with the second primary support and the third primary support, and the third through hole is connected with the fourth primary support.

[0006] Further, the first primary support and the fourth primary support are symmetrically fixed to the A phase and the C phase of the primary winding of the voltage transformer, and the second primary support and the third primary support are symmetrically fixed to the common end B phase of the primary winding of the voltage transformer.

[0007] Further, the through hole of the primary support and the welding positioning plate is fixedly connected through an M8 bolt.

[0008] Further, the welding positioning plate is a 5mm-thick iron plate, and the welding positioning plate is deburred.

[0009] Further, the bottom positioning plate is provided with a vertical baffle plate, the baffle plate is arranged in parallel with the transformer core, and the baffle plate is lower than the transformer coil.

[0010] Further, the bottom positioning plate is provided with a plurality of round holes.

[0011] Compared with the prior art, the utility model has the advantages that the transformer coil can be well fixed on the welding positioning plate, the position of the primary support of the transformer welded on the transformer coil can be accurately realized, the adjustment of the insulation distance between the primary winding and the secondary winding of the voltage transformer is convenient, the transformer constitutes an axisymmetric uniform electric field, the processing cost is low, and the processing technology is simple. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 It is a structure front view of the utility model;

[0013] Fig. 2 It is a structure right view of the utility model;

[0014] Fig. 3 It is a structure front view of the welding positioning plate;

[0015] Fig. 1, mutual inductor core; 2, mutual inductor coil; 3, annular groove; 4-1, No. 1 primary support; 4-2, No. 2 primary support; 4-3, No. 3 primary support; 4-4, No. 4 primary support; 5, welding positioning plate; 6-1, No. 1 through hole; 6-2, No. 2 through hole; 6-3, No. 3 through hole; 7, notch; 8, bottom positioning plate; 9, baffle; 10, M8 bolt. DETAILED DESCRIPTION

[0016] In order to make the structure and function of the utility model more clear, the technical scheme in the utility model embodiment will be clearly and completely described below in combination with the drawings in the utility model embodiment.

[0017] Referring to the drawings Figs. 1-3 A voltage transformer primary support welding positioning tool, the voltage transformer comprising a mutual inductor core 1, a mutual inductor coil 2 and a primary support; the positioning tool comprising a welding positioning plate 5 and a bottom positioning plate 8; the mutual inductor coil 2 is arranged on the mutual inductor core 1, and the primary support is arranged on the mutual inductor coil 2; an annular groove 3 is arranged on the outer diameter of the mutual inductor coil 2 in the circumferential direction, one side of the welding positioning plate 5 is provided with an inner concave arc matched with the annular groove 3, the welding positioning plate 5 is sleeved on the mutual inductor coil 2, and the inner concave arc is arranged in the annular groove 3; a through hole is arranged on the welding positioning plate 5, and the primary support is connected with the welding positioning plate 5 through the through hole; and the mutual inductor core 1 is arranged on the bottom positioning plate 8.

[0018] Further, the voltage transformer has two, namely a No. 1 voltage transformer and a No. 2 voltage transformer; the No. 1 voltage transformer and the No. 2 voltage transformer are arranged in parallel on the bottom positioning plate 8; a No. 1 primary support 4-1 and a No. 2 primary support 4-2 are arranged on the No. 1 voltage transformer, and a No. 3 primary support 4-3 and a No. 4 primary support 4-4 are arranged on the No. 2 voltage transformer; the No. 1 primary support 4-1 and the No. 4 primary support 4-4 are arranged on one side of the welding positioning plate 5, and the No. 2 primary support 4-2 and the No. 3 primary support 4-3 are arranged on the other side of the welding positioning plate 5; one side of the welding positioning plate 5 is provided with two inner concave arcs matched with the annular groove 3, the same side of the welding positioning plate 5 is provided with a notch 7, and the notch 7 is located between the two inner concave arcs; the No. 2 primary support 4-2 and the No. 3 primary support 4-3 are connected with the welding positioning plate 5 through the notch 7; and the through hole has three, namely a No. 1 through hole 6-1, a No. 2 through hole 6-2 and a No. 3 through hole 6-3, the No. 1 through hole 6-1 is connected with the No. 1 primary support 4-1, the No. 2 through hole 6-2 is connected with the No. 2 primary support 4-2 and the No. 3 primary support 4-3, and the No. 3 through hole 6-3 is connected with the No. 4 primary support 4-4.

[0019] Further, the first primary support 4-1 and the fourth primary support 4-4 are symmetrically fixed to the A and C phases of the primary winding of the voltage transformer, and the second primary support 4-2 and the third primary support 4-3 are symmetrically fixed to the B phase of the primary winding of the voltage transformer.

[0020] Further, the through hole of the primary support and the welding positioning plate 5 is fixedly connected through the M8 bolt 10.

[0021] Further, the welding positioning plate 5 is a 5mm-thick iron plate, and the welding positioning plate 5 is deburred.

[0022] Further, the bottom positioning plate 8 is provided with vertical baffles 9, the baffles 9 are arranged in parallel with the transformer core 1, and the baffles 9 are lower than the transformer coil 2; the baffles 9 are four, which are arranged on both sides of the first voltage transformer and both sides of the second voltage transformer, and the two baffles 9 arranged on the outer side are in the shape of “ ”, and the opening faces outward.

[0023] Further, the bottom positioning plate 8 is provided with a plurality of round holes.

[0024] The above only discloses the preferred embodiments of the present application, and of course cannot limit the scope of the rights of the present application, so the equivalent changes made according to the claims of the present application still belong to the scope covered by the present application.

Claims

1. A welding and positioning fixture for a primary support of a voltage transformer, the voltage transformer comprising a transformer core, a transformer coil, and a primary support; characterized in that: The positioning fixture includes a welding positioning plate and a bottom positioning plate; a current transformer coil is provided on the current transformer core, and a primary support is provided on the current transformer coil; an annular groove is provided circumferentially on the outer diameter of the current transformer coil, and one side of the welding positioning plate is provided with an inward concave arc that matches the annular groove; the welding positioning plate is sleeved on the current transformer coil, and the inward concave arc is located within the annular groove; a through hole is provided on the welding positioning plate, and the primary support is connected to the welding positioning plate through the through hole; the current transformer core is located on the bottom positioning plate.

2. The welding and positioning fixture for a primary support of a voltage transformer according to claim 1, characterized in that: There are two voltage transformers, voltage transformer No. 1 and voltage transformer No. 2; voltage transformer No. 1 and voltage transformer No. 2 are arranged parallel to each other on the bottom positioning plate; voltage transformer No. 1 is provided with primary support No. 1 and primary support No. 2, and voltage transformer No. 2 is provided with primary support No. 3 and primary support No. 4; primary support No. 1 and primary support No. 4 are located on one side of the welding positioning plate, and primary support No. 2 and primary support No. 3 are located on the other side of the welding positioning plate; one side of the welding positioning plate is provided with two concave arcs that match the annular groove, and the same side of the welding positioning plate is provided with a notch, which is located between the two concave arcs; primary support No. 2 and primary support No. 3 pass through the notch and connect to the welding positioning plate; there are three through holes, through hole No. 1, through hole No. 2, and through hole No. 3, with through hole No. 1 connecting to primary support No. 1, through hole No. 2 connecting to primary support No. 2 and primary support No. 3, and through hole No. 3 connecting to primary support No.

4.

3. The welding and positioning fixture for a primary support of a voltage transformer according to claim 2, characterized in that: The No. 1 primary support and the No. 4 primary support are symmetrically fixed to phases A and C of the primary winding of the voltage transformer, and the No. 2 primary support and the No. 3 primary support are symmetrically fixed to phase B, the common terminal of the primary winding of the voltage transformer.

4. The welding and positioning fixture for a primary support of a voltage transformer according to claim 1, characterized in that: The through holes of the primary bracket and the welding positioning plate are fixedly connected by M8 bolts.

5. The welding and positioning fixture for a primary support of a voltage transformer according to claim 1, characterized in that: The welding positioning plate is a 5mm thick iron plate, and the welding positioning plate is deburred.

6. The welding and positioning fixture for a primary support of a voltage transformer according to claim 1, characterized in that: A vertical baffle is provided on the bottom positioning plate. The baffle is arranged parallel to the transformer core and is lower than the transformer coil.

Images