JPH0294333A - Electromagnetic relay - Google Patents

Abstract

PURPOSE:To make it possible to reduce the number of parts, also to reduce the work man-hour by providing such constitution that two conventional magnet blocks are fitted in one support block. CONSTITUTION:Magnet blocks R1 and R2 are constructed in the same way as conventional electromagnetic relays, and they have tongue tip 12 Aa and 12 Ba extended respectively from yokes 12A and 12B in the forward direction downward. A support block 18 has holes 18A and 18B that engage with tongue tips 12Aa and 12Bb respectively. The support block 18 has two fixed contacts that face to respective movable springs 13A and 13B of magnet blocks R1 and R2 and also has fixed contact terminals 16 and 17 that are provided above and below those movable springs 13A and 13B respectively. In this way, the cost of an electromagnetic relay itself and the cost for assembling it to a printed board can be made small.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to electromagnetic relays, and particularly to electromagnetic relays used for automotive electrical equipment.

[Conventional technology]

This conventional bulk electromagnetic relay has a configuration as shown in FIG. That is, a coil 9 with an iron core inside and wound around the spool 1, and a yoke 2 extending downward and forward and having a slender tongue portion 2a'fz and magnetically connected to the iron core.
, a movable contact spring 3 supported by a yoke 2, an armature 4 that is attracted by a coil 9 to drive the movable contact spring 3, and a terminal led out from the movable contact spring 3 (not visible in FIG. 2). The coil 901 set of lead-out terminals (coil terminals) 5 constitute a magnet block, and the tongue piece 2a of this magnet block has a - set of fixed contact lead-out edge contact terminals) 6a and 7b=2 and a movable spring 3. A pair of fixed contact terminals 6 and 7 are arranged above and below, and a hole for combining and supporting the set of fixed contact terminals 6 and 7 and engaging and holding the tongue piece ZaTh. The hole 8 of the support block 8 has a portion 8a and a tongue portion 8b that is easily deformable in the vertical direction at the rear.
By fitting into the tongue portion 8b and deforming the tongue portion 8b, a T-joint is formed and the two are integrated.

When using electromagnetic relays with this type of configuration, especially in automotive electrical equipment, such as door lock circuits and seat belt circuits, it is necessary to drive the solenoid or motor load by reversing the forward and reverse directions. , two electromagnetic relays 10 are used by an electric circuit as shown in FIG.

[Problem that the invention seeks to solve]

When using the conventional electric relay as described above as a relay for automotive electrical equipment, two pieces must be used.
Therefore, there are disadvantages in that the cost of the electromagnetic relay itself and the assembly cost for mounting it on a printed board etc. are high.

[Means for solving problems]

The uninvented electromagnetic relay takes advantage of the advantage of conventional electromagnetic relays, that is, the configuration that allows the electromagnetic relay to be divided into a magnet block and a support block, and combines the Hfi support block with
One electromagnetic relay is constructed by two magnet blocks.

In other words, does the uninvented electromagnetic relay have an iron core? A coil wound around an internal sugur, a yoke magnetically and mechanically coupled to the coil, an armature magnetically attracted and driven by the coil, and coupled to the armature and having a contact at its tip. A movable spring, a plurality of magnet blocks having tongue portions extending from the yoke, and the plurality of magnet blocks are all mounted in parallel, and the tongue portions are fitted into the upper and lower front surfaces of the movable spring at the top. and a support block having a plurality of holes for fixing.

〔Example〕

Next, embodiments of the invention will be described with reference to the drawings.

FIG. 1 is a perspective view showing one embodiment of the present invention.

In Figure 1, the magnetic block 几! 2 and 2 have the same configuration as the conventional electromagnetic relay shown in FIG. 2, and have tongue portions 12Aa and 12Bai extending downward and forward from the yokes 2 and 2B, respectively. The support block 18 has tongue portions 12A and 12B.
It has holes 18A and 18Bi that engage with. The support block 18 has two fixed contacts corresponding to the movable springs 13A and 138 of the magnet block R and R7, respectively, and has fixed contact terminals 16 and 17 arranged above and below them. .

One support block 18 configured in this way, the tongue pieces 12A and 12Bf are fitted into the magnet block boxes 1 and It1212, and the hole holes 8A and 18H, respectively, and the rear tongue piece 18 is shaped like B support/i. and join. As lead-in terminals, at least one pair of fixed contact terminals 1
6 and 17, and coil terminals 15 corresponding to the coils of the magnet block 1 (1 and R).

In the case of an electromagnetic relay that requires complete sealing, a single cover is attached to cover them, and the terminals are sealed with resin from the side.

One electromagnetic relay configured in this way has two conventional 'l! a! It can be incorporated into the circuit of FIG. 3 in place of the J-ray.

〔Effect of the invention〕

As explained above, the electromagnetic relay of the present invention reduces the number of parts and greatly reduces the number of machining steps by being configured so that it is attached to a support block consisting of two magnetic blocks with the same configuration as the conventional one. This has the effect that it can be reduced to Furthermore, since only one electromagnetic relay is required to attach the electromagnetic relay to a printed circuit board or the like, assembly costs can also be reduced.

[Brief Description of the Drawings] Fig. 1 is a perspective view showing an embodiment of the present invention, Fig. 2 is a perspective view showing an example of a conventional electromagnetic relay, and Fig. 3 is a perspective view showing an example of a conventional electromagnetic relay. FIG. 9 is a circuit diagram of a ninth example used in FIG. 12A/12B...Yoke, 13A/13B...Movable spring, 15...Coil terminal, 16/17...
・Fixed contact terminal, 18...Support block, R1
・几2...Magnetic block. Agent Patent Attorney Susumu Uchihara

Claims (1)

[Claims] A coil wound around a spool with an internal iron core, a yoke magnetically and mechanically coupled to the coil, and an armature that is magnetically attracted and driven by the coil.
A movable spring coupled to the armature and having a contact point at its tip, a plurality of magnet blocks having tongue portions extending from the yoke, and the plurality of magnet blocks being mounted in parallel, and the movable spring being connected to the upper part of the movable spring. a support block that supports a pair of fixed contact terminals that are arranged above and below and have fixed contacts at positions corresponding to the contacts, and has a plurality of holes in which the tongue pieces are inserted and fixed in the front surface of the lower part; An electromagnetic relay characterized by comprising: