JPH0227541Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to electromagnetic equipment such as transformers, and is a method of mounting the equipment by welding to the laminated surface of a laminated iron core body in order to attach the main body of the equipment to an object to be attached. Regarding the board.

[Conventional technology]

Conventionally, such electromagnetic equipment is made by butt-coupling an E-type laminated core 2 and an I-type laminated core 3 into which primary and secondary coils 1 are inserted, as shown in FIGS. 4 and 5. A laminated core body 4 is formed, and a mounting plate 5 for attaching the electromagnetic device to an object to be mounted is fixed to one laminated surface of the laminated core body 4 including the joint edges of both the laminated bodies 2 and 3. . This mounting plate 5
is formed so that its both edges 5a coincide with both ends of the laminated iron core 4 in the direction perpendicular to the lamination direction, and as shown in FIG. They were welded together using a welding torch 6 disposed diagonally to the side along the stacking direction.

[Problem that the invention attempts to solve]

In conventional electromagnetic equipment, the mounting plates are welded at the ends of the laminated core, so welding sag as shown in Figure 5 may occur, and if the dimensions of the laminated core change, It is necessary to change the dimensions of the mounting plate accordingly, so if the mounting plate were to be standardized, the welding jig would have to be positioned diagonally to the side, which would require a large amount of space for the welding equipment. There was a problem.

This idea was created with these points in mind.
The purpose of the present invention is to provide electromagnetic equipment that prevents the occurrence of weld sag due to welding, allows for common use by allowing a mounting plate to accommodate changes in the dimensions of a laminated core body, and also enables miniaturization of welding equipment. It is something.

[Means for solving problems]

In the present invention, a primary coil 1 as a coil is mounted on a laminated iron core body 12 formed by laminating iron core plates 13 and 15.
7 and a secondary coil 18 are fitted to form a closed magnetic circuit, and a mounting plate 20 is provided on the laminated surface of the laminated core body 12 by welding.
At both edges of the laminated core body 12 in a direction perpendicular to the lamination direction, both ends 12a of the laminated core body 12 are attached.
A notch 21 is provided inwardly,
This is an electromagnetic device in which the width between both notches 21 is shorter than the width between both ends 12a of the laminated core 12.

[Effect]

In the present invention, a mounting plate is fixed by welding to the laminated surface of the laminated core body along a notch provided inside the end of the laminated core body.

〔Example〕

Next, the configuration of an embodiment of the present invention will be described with reference to the drawings.

In FIGS. 1 to 3, 11 is a device main body, and this device main body 11 has a laminated iron core 12,
This laminated iron core body 12 is made up of E iron core plates 13 laminated together.
I-type laminated core 14 and I-type core plate 15 are laminated.
After inserting the primary coil 17, secondary coil 18, and path core (not shown) into the E-type laminated core 14, the I-type laminated core 16 is inserted. Weld and connect each coil 1
7, 18, etc. and the laminated iron core body 12 constitute a closed magnetic circuit.

In addition, both laminated cores 14 and 16 of the laminated core body 12
The device body 11 is on one laminated surface including the joint edge of the
A mounting plate 20 for attaching the to the object is joined. The width of the mounting plate 20 is shorter than the width between the ends 12a of the laminated core body 12 in the direction perpendicular to the stacking direction of the laminated iron core 12. Notches 21 each having a width of l ₁ are cut out on the inside as shown in FIG.
are formed along both ends 12a of the laminated core body 12, and are formed to protrude outward from both ends of the laminated core body 12 in the lamination direction of the laminated core body 12. Attachment holes 22 are formed at each of the four corners of the plate 20.

Then, as shown in Figures 2 and 3,
The mounting plate 2 is attached by a vertically installed welding torch 25.
The mounting plate 20 is welded to the laminated core 12 by welding the two notches 21 along the laminated surface of the laminated core 12. At this time, welding sag due to welding occurs between the end 12a of the laminated iron core 12 and the mounting plate 2.
It remains between the notch 21 of 0 and the notch 21 of 0. Furthermore, the end portion 12a of the laminated iron core 12 and the notch portion 2 of the mounting plate 20 are
1, the same mounting plate ₂₀ can be welded and connected even if the width dimension of the laminated core body 12 in the direction perpendicular to the lamination direction changes.

[Effect of idea]

According to the present invention, a mounting plate attached to the laminated surface of a laminated core body is provided with a width smaller than the width dimension between both ends of the laminated core body in a direction perpendicular to the lamination direction of the laminated core body. A notch is provided at the edge of the laminated core, and welding is performed along this notch to the laminated surface of the laminated core, so that welding sag during welding remains on the laminated surface between the notch and the end of the laminated core, so that welding is performed on the outside. Furthermore, since we have provided a notch for welding inside the end of the laminated core, the same mounting plate can be used even if the dimensions of the laminated core change, making the installation easier. The plates can be used in common, and the welding jig for welding can be placed perpendicular to the laminated surface to which the mounting plate of the laminated core body is welded, so the welding equipment can be downsized. It is something.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing an embodiment of the electromagnetic device of the present invention, Figs. 2 and 3 are explanatory views showing respective welding states, Fig. 4 is a perspective view of a conventional electromagnetic device, and Fig. 5 is an explanatory diagram showing the welding state. 12... Laminated core body, 12a... Both ends of the laminated core body, 13, 15... E-type core plate and I-type core plate as core plates, 17, 18... Primary coil and secondary coil as coils. , 20... Mounting plate, 21... Notch.

Claims (1)

[Scope of Claim for Utility Model Registration] A laminated iron core is formed by laminating iron core plates, a coil is inserted into the laminated iron core to form a closed magnetic circuit, and a mounting plate is attached to the laminated surface of the laminated iron core by welding. In the electromagnetic equipment provided, the mounting plate has notches at both edges of the laminated core body in a direction perpendicular to the stacking direction thereof, each of which is cut inward from both ends of the laminated core body and serves as a welding point to the laminated core body. 1. An electromagnetic device characterized in that a width dimension between both notches is shorter than a width dimension between both ends of a laminated core body.