JPS59181512A - electromagnetic device - Google Patents

Abstract

PURPOSE:To securely keep insulating distance and prevent the generation of noise due to vibrations of iron core and coil by forming a stopper to the spacer and causing the spacer to hold the coil and iron core in the specified position. CONSTITUTION:A coil 13 is engaged with the center leg 14 of E type laminated iron core 11, an I type laminated iron core 12 is abut-welded and thereby an electromagnetic body 19 having magnetic gap can be formed. The spacers 16, 16 are forced to be inserted between the iron core body 10 and coil 13 along the both ends of iron core body 10 and the stopper portions 18 of spacers 16, 16 are respectively abutted against the external circumference of coil 13. Thereby, the spacers 16, 16 are inserted in the equal amount and an insulating gap l between the iron core body 10 and internal circumferencial surface of coil 13 becomes almost equal at both ends surface of iron core body 10.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a jib', a magnetic device, which is inserted between an iron core body and a fill, and which suppresses iron core vibration that occurs when a predetermined AC voltage is applied to the coil. The present invention relates to a spacer that prevents whining noise caused by coil vibration and maintains an insulating distance between the coil and the iron core.

[Technical background of the invention]

A conventional electromagnetic device of this type consists of an iron core (1) and a coil (2) attached to the iron core (1), as shown in Figures 1 and 2.
) and a wedge-shaped spacer (3)? Press fit and insert the iron core (1
) to coil (2)? A fixed structure is adopted.

Generally, electromagnetic devices are treated with varnish, but the varnish deteriorates over time2, and the adhesion of the varnish decreases at wide widths, so the spacer (3) was designed without varnish treatment. It is necessary to achieve the objectives of suppressing core vibration and coil vibration and insulating the coil and core body, and varnish treatment must be considered as an auxiliary means.

[Problems with background technology]

In the conventional structure, the spacer (3) is formed into a wedge shape, so the spacer (3) (3) inserted along both end faces of the iron core (1), respectively, as shown in FIG. The spacer (3), which was not press-fitted evenly and was inserted shallowly due to the deterioration of the varnish and the vibration of the core body and coil when power is applied, is pulled out, causing a loud noise, and the spacer (3) Because the gap between both end faces of the coil (2) and the coil (2) is uneven, the insulation distance between the coil (2) and the iron core (1) is short on the side where the spacer (3) is inserted shallowly <lr vinegar,
The insulation distance is insufficient (7), and the spacer (3) is tilted around 1 as shown in Figure 4, and the spacer (3) is
) makes one point contact with the coil (2), and the spacer (:()
This method has disadvantages in that the insertion of the spacer (3) becomes unstable, and defects in the insertion of the spacer (3) or defects due to changes over time are likely to occur, and the assembly workability is poor.

[Purpose of the invention]

The invention was made in view of the disadvantages mentioned in -1-, and the insulation distance between the spacer and the iron core is reliably maintained, and the generation of noise due to core vibration and coil vibration is prevented by applying an alternating voltage. An object of the present invention is to provide an electromagnetic device that is free from defects caused by process defects and changes over time.

Further, the present invention provides an electromagnetic device in which the spacer can be reliably attached without any trouble even if some welding occurs in the laminated core of the core body.

Furthermore, the present invention provides an electrical storage device that allows a spacer to be reliably attached even if there are variations in the laminated thickness of the iron core, variations in the finish of the inner diameter of the coil, etc.

[Summary of the invention]

In the present invention, a part of the stopper is formed on the spacer so that the spacer can be held in a predetermined position [K] between the coil and the core body. It consists of a coil attached to an iron core body and a spacer molded from resin that is inserted between the iron core body and the coil and defines the distance between the iron core body and the coil, and the spacer is positioned and held by the spacer. A part of the stopper is formed to protrude.

Further, in the invention, a recess is formed in a part of the stopper of the spacer on one side facing the iron core.

Further, in the present invention, the spacer is covered with a flexible insulating plate in the direction in which the cores are laminated in the core body.

[Embodiments of the invention]

The configuration of the proposed capital punishment of the present invention will be explained with reference to Drawings I6 to I8.

0 is the core body, E-shaped layered core 0υ and I-shaped laminated core θ2
The coil (131) is fitted into the right center leg 0 (A) of the E-type laminated core OD, and the I-type M/ff core α2 is butted against the E-type laminated core 01. Weld the side legs 0 of the I-type laminated core θ2 to the I-type laminated core θ2. Also, weld the central parts of both laminated cores αυ02 in the lamination direction.Furthermore, the bottom of the E-type laminated core αυ is attached to the mounting plate (C). Weld.

Next, (1e is an insulating spacer molded from synthetic resin, one side 07 of which tapers toward the tip side as shown in Fig. 8) is formed in an inclined shape, and the base of this -side 0η A part of the stopper (marked 1) is formed protrudingly at the end.

Next, the operation of this embodiment will be explained.

Right part of center leg of E-shaped layered core 0υ (14) K coil 03)
The C-shaped laminated iron core θ2 is butt-bonded and melted to form an electromagnetic body (one layer) having a magnetic gap as shown in Fig. 6.

Next, as shown in Fig.
Strongly insert the spacer ne between the coil (I) and the coil (I).
At'a stopper part of each coil (13)
Both spacers (I
FQ (IC+ insertion amount is uniform, iron core (Ill)
The insulation gap (A') between the inner surface of the fill (14) and the inner surface of the iron core (10) is approximately the same on both end surfaces of the iron core (10).

In addition, the spacer (1 order U+) is installed in the shaped laminated core (1
You may insert it before attaching 3.

Next, other embodiments will be described with reference to FIGS. 9 and 10.

The structure of the force of the iron core body 111 is the same as that of the previous embodiment, and the opening between the tip of the spacer (a part of the IQ stopper (2G is the center leg right part 04 of the E-type laminated core circle) and the shaped laminated core 02) The structure is such that it is inserted into the core gap (2υ), and the core body (inserted into the core gap circle of 1 (2) The spacer (16) f is formed with the coil 0□□□ fitted to the center leg right αa of the E-shaped laminated core 01 in the configuration of this embodiment.
i, f3) and engage the stopper part (a) with the distal end surface of the right part 04 of the center leg. Next, by notching the I-type laminated core Q2+ to the E-type laminated core (former), the stopper part (4) is engaged and held in the core gap (2I), and the core body αQ
The insulating gap (I
Keep A constant.

In this configuration, the E-type laminated core θD and the engineered laminated core 0
The spacers (1, 6) and (16) will not come off unless they are separated from the spacer 21.

Furthermore, as shown in FIG. 11, in addition to the structure of the above embodiment, a part of the stopper (IFI) is protruded from the base of the base plate (one side 07 of 10) and engages with the outer peripheral surface of the coil (13).
It is also possible to provide a part of the stopper (2α) that is projected near the base of the other side surface C40 and is temporarily inserted into the core gap υ of the core body 0.

Next, the structure of another embodiment will be explained with reference to FIG. 12.

The surface (
A concave fg+c3r is formed at 221. And the iron core (
10) E-type laminated core (111) When the tip surfaces of the central leg center circles are brought into explosive contact in the lamination direction and heated for 5K to prevent noise due to vibration of the core body QG, l18 contact will occur in the lamination direction, Even if this explosion contact protrudes from the end face of the thin core (10), the spacer 0eK has four parts (c), so the spacer αQ is securely placed between the core (10) and the coil 0.3). inserted into.

Also, the recess Q31 of this spacer αe is shown in Fig. O8, N-10.
It is also effective to form a spacer (1 unit 0υ(16)K) as shown in Fig. 11.

Further, the structure of another embodiment will be explained with reference to Figures 1-13 and 14.

This configuration uses the spacer (]t+') shown in FIG. 10 above.
(Part of the stopper where 16+ iron core 2' RHK is inserted (
This spacer (16
) (+, 6) stopper part (connection part (24 of 21)
Tetsushinku I'11. (The thickness is A2, which is thinner than the dimension (tag) of 2υ), and the connection part (24) of the spacer θ (to) is fixed to the core gap (211) with varnish or adhesive. With the coil (1) fitted to the iron core Uυ, spacers aea and e are inserted between the coil 0J and the iron core OQ, and the connecting part C! (a) is connected to the central leg 6 that forms the core gap (21). (Abuts 141 and then joins the I-type & layered core 02) to the E-type laminated core (marked).

Furthermore, other fruit) y[Iitji1] Tree 15 Figure 1.31''
Regarding Figure 16, jj, 'j1' - (ru.

A flexible insulating plate 15 made of felt, aramid, non-woven surface, press board, etc., folded at the tip side, is interposed on the outer periphery of the spacer (16) shown in Fig. 12. Part of the stopper of the spacer θυ (the outer periphery is covered with an insulating plate, except for Nagisa).

In this tj% construction, the absolute nine plate connections are between the spacer (16) and the coil () (8) and between the spacer 0ω and the iron core fltl.
) Which 1'... is inserted, variations in the thickness of the iron core (10), variations in the finish of the coil inner diameter, etc. are absorbed by the flexibility of the insulation cloth, and damage to the coil (13) is prevented. , the spacer (
+6+, the coil 0 and the iron core body O11 are tightly fixed through an insulating plate Q4.

In addition, the spacer 061 made by I=M in this example has 8 teeth and 1
, the spacer shown in FIGS. 10, 11, and 14 (
1■Qii) (1 (minute 06)K can also be applied.

〔Effect of the invention〕

According to the present invention, the iron core body and the coil iil 'Ic 4
7. Since a part of the stopper is formed on the spacer to be held in position, the part of the stopper engages with the coil opening or the core gap of the iron core body. The gap between both end faces and the coil is kept constant, a stable electromagnetic device of 5.4 is obtained, and workability is improved.

Furthermore, by connecting a portion of the strapper inserted into the core gap of a pair of spacers, the spacer can be easily assembled, the spacer becomes larger, and handling becomes easier, thereby improving the assembly process.

In addition, in the present invention, a recess is formed on the surface of the spacer facing the iron core, so that even if the iron core has a configuration in which vibration is prevented by welding laminated iron cores in the lamination direction, the spacer will remain in the recess even if some welding occurs. Since the protrusion h(() due to welding sag is avoided, the spacer can be installed reliably.

Furthermore, according to the present invention, since the spacer is covered with a flexible insulating plate in the lamination direction of the core body, variations in the core thickness of the core body and variations in finish of the coil inner diameter are absorbed by the insulating plate, thereby preventing damage to the coil. can be prevented.

[Brief explanation of the drawing]

Figure 1 is a perspective view of the iron core of a conventional electromagnetic device, Figure 2 is a sectional view of the same electromagnetic device as above, Figures E and 3 are sectional views showing incorrect insertion of the spacer as above, and Figure 4 is insertion of the spacer as above. A perspective view showing a defective state, Figure 5 is a plan view of the same as above, Figure 6 is a perspective view of an embodiment of the present invention and a magnetic device, Figure 5 is a sectional view of the same as above, Figure 8 is a sectional view of the same as above. Perspective view of spacer, cutting-9
The figure is a sectional view of an electromagnetic device showing another embodiment, FIG. 10 is a perspective view of the same spacer as above, FIGS. Fig. 14 is a perspective view of the above spacer, Fig. 15 is a sectional view of the electromagnetic device showing the other flow side, and Fig. 16 is a perspective view of the above spacer. (IG...iron core, facing...coil, Oe...spacer,
as (2t; o... part of stopper, (21)... core gap, □□□... recess, (c)... insulating plate. March 31, 1980 Inventor: Akira Waihara Recaptured
Yoshihiro Kakishima Percentage fraud applicant Tokyo Electric Co., Ltd. agent Unato Kabazawa Jundo Kabazawa
Shima Mune Masaji-4゛

Claims (6)

[Claims] (1) An iron core formed from a laminated iron core to form a magnetic gap, a coil attached to this iron core, and a coil inserted between this iron core and the coil to reduce the distance between this iron core and the coil. An electromagnetic device comprising a spacer molded from a resin with a fixed diameter, and a stopper portion protruding from the spacer for positioning and holding the spacer. (2) Part of the stopper of the spacer is engaged with the empty core of the core body, which is the scope of the IPF fraud claim described in item 1! Magnetic device. (3) The electromagnetic device according to claim 1, wherein a portion of the stopper of the spacer is engaged with the outer peripheral surface of the coil. (4) Spacers inserted between both end faces of the core body and the coil are connected by a portion of a stopper that is engaged with the core gap of the core body.
Electromagnetic devices described in Section 1. (5) An iron core formed of a laminated iron core forming a magnetic gap, a coil attached to this iron core, and a space between the iron core and the coil inserted between the iron core and the coil. The invention is patented as follows: a spacer molded from a specified resin; a stopper for positioning and holding the spacer is formed protrudingly from the spacer; and a recess is formed on the surface of the spacer facing the laminated core side of the core body. electromagnetic device. (6) An iron core formed of a laminated iron core to form a magnetic gap, a coil attached to this iron core, and a filter inserted between this iron core and the coil to define the spacing between this iron core and the filter. a spacer molded from resin, a part of a stopper for positioning and holding the spacer is formed protrudingly on the spacer, and the spacer is attached to a flexible insulating plate in the direction of the iron core layer of the iron core body. Electricity characterized by being covered with! a device.