JPH0447626A - Electromagnetic apparatus - Google Patents

Abstract

PURPOSE:To make it needless to use adhesive agent for coil wire and to prevent looseness of a coil wire when a terminal is bent by winding a coil wire which carries an excitation current around a bobbin and installing the end part of the coil wire by means of an engaging part provided in the bobbin on a terminal provided on the bobbin. CONSTITUTION:A coil wire 2 is wound around a bobbin 16 and is fixed on a terminal 3 after inserted into a slit 161 which is formed on the end part of the bottom of the bobbin 16. In this case, the terminal 3 is in a horizontal state on the bottom of the bobbin. After the coil wire 2 is fixed to the terminal 3, the terminal 3 is bent inward by 90 degrees, but in an end part 21 of the coil wire 2 which is bent through the slit 161, looseness is not generated. Furthermore, an ear is provided on the bobbin, the coil wire, which is wound only with a preset turns around the bobbin, is led to this ear and fixed on the terminal by being wound several turns, thereafter, it can be bent inward by 90 degrees.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an electromagnetic device such as a relay that supplies power to an internal combustion engine.

[Conventional technology]

Figures 4 and 5 are in the south showing this type of relay in the past.
In the figure, 1 is a plastic bobbin, 2 is a coil source wound on the bobbin 1, 3 is a brass terminal provided on the bobbin 1 and to which the end 21 of the coil wire 2 is attached, and 4 is an electromagnetic soft iron bag. Core, 5 is I! A magnetic iron yoke, 6 (a beryllium copper spring fixed to the yoke 5 by a screw 7, 8 an armature of an electromagnetic soft iron bag attached to the spring 6, and 9 an alloy movable armature caulked to the armature 8) 4 is a contact, 10 is an alloy fixed contact placed opposite the movable contact 9, 11 is a carbon film resistor, 1 is a plastic base, 13 is a brass connector terminal attached to the base. Adhesive made of ethylene vinyl resin, 15 is a camp made of plastic.

In this conventional device, when an excitation current of a predetermined value or more flows through the coil wire 1, a magnetic circuit is formed through the core 4, the yoke 5, and the armature 8, and the armature 8 is attracted to the core 4.

As a result, movable contact 9 and fixed contact 10 are closed.

[Problem to be solved by the invention]

In this conventional method, the terminal end 21 of the coil wire 2 is tied to the terminal 3, and then this terminal 3 is bent inward by 90 degrees, which causes the coil source to loosen (Fig. 6). Bend terminal 3 to prevent the coil wire from coming loose.
+1) It was necessary to apply an adhesive to the coil wire, and there were other problems such as the adhesive melting and flowing out in a high-temperature environment.

This invention was made to solve these problems, and aims to provide an electromagnetic device that eliminates the use of adhesives for coil wires and prevents the coil wires from loosening when the terminals are bent. do.

[Means to solve the problem]

The electromagnetic device M according to the present invention winds a coil wire to which an excitation current is applied around a bobbin, and attaches an end of the coil wire to a terminal provided on the bobbin via an engaging portion provided on the bobbin. It is something that

[Effect]

The bobbin in this invention is provided with an engaging part that guides the end of the coil wire, so when the terminal is bent (this prevents the coil wire from loosening and there is no need to apply adhesive on the coil source). and the quality will improve.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 and 2.

That is, in FIGS. 1 and 2, 10 is a bobbin around which the coil wire 2 is wound and which has a slit 161 into which the end portion 21 of the coil wire is inserted.

Note that the other configurations are the same as those of the conventional device shown in FIGS. 4 to 6, and therefore the description thereof will be omitted.

With this configuration, the coil wire 2 is connected to the bobbin 1.
6. After winding and inserting into the slit 16I formed at the bottom end of the pobbin 16, it is fixed to the terminal 3.

In this case, the terminal 3 is in a horizontal state with the bottom surface of the bobbin as shown in the second factor. After fixing the coil wire 2 to the terminal 3,
is bent inward by 90 degrees, but the end portion 21 of the coil wire 2 bent at the slit 161 does not become loose.

In addition, in this embodiment, the bobbin 16 has a sulin) 161
However, as shown in Fig. 8, the bobbin 1
7 may be provided with ears 171. bobbin 1 for a predetermined number of times.
7. The coil 2E bobbin 17 & this is wound on the ear 171. Wind the ear 171 & this several times and connect the rear terminal 3.
・Then, the terminal 3 is bent inward by 90 degrees, but the coil wire 2 does not become loose.

In addition, in the example, the case of a relay was explained, but
It may also be a motor or the like.

〔Effect of the invention〕

As mentioned above, in the electromagnetic device according to the present invention, the end of the coil wire is attached to the terminal via the engaging part provided on the bobbin, so when the coil wire fixed terminal is bent, the coil wire is There is no need for heating, and the quality improves.

[Brief explanation of drawings]

FIG. 1 and FIG. 2 are diagrams showing one embodiment of this invention,
Fig. 1 is a perspective view, Fig. 2 is a side view of the main part for explaining the function, and Fig. 8 shows another embodiment of this defense. are a side view and a front view of the main part after bending the terminal, Figs. 4 to 6 are diagrams showing a conventional electromagnetic equipment device, Fig. 4 is a perspective view, and the fifth factor is a front view of the main part, Figure 6 (J main part side view. In the figure, 1, 16 and 17 are bobbins, 2 is a coil wire, 3 is a terminal, 161 is a slit, and +71 is a lug. In addition, the same reference numerals in the figure are the same) - or a corresponding portion.

Claims (1)

[Claims] a bobbin around which a coil wire to which an excitation current is applied is wound; an engaging portion provided on the bobbin to which an end of the coil wire is engaged; and an engagement portion provided on the bobbin to which an end of the coil wire is attached. Electromagnetic equipment with terminals that can be used.