JPH0357128A - Relay - Google Patents

Abstract

PURPOSE:To enable the stable oscillation support and provide a relay having stable operating characteristics by providing shaft parts supported by a base on the intermediate both sides of an armature, and providing a support spring part to be connected with an external terminal on a movable contact spring. CONSTITUTION:When a coil 1c is excited, an armature block 4 is oscillated by shaft parts 5a 5a of an armature forming an oscillating shaft, a movable contact spring 6 mounted on the armature 5 is also oscillated and reversed, and movable contacts 7, 7 provided on its both sides are touched by or separated from fixed contacts 9a, 9b, respectively. When the coil 1c is reversely excited, the armature block 4 is again oscillated in the reversed direction to the above, and according to this, the contact relation between the movable contacts 7, 7 and the fixed contacts 9a, 9a is also reversed, wherein the movable contact 7 on the touched side is separated from the fixed contact 9a, and the separated movable contact 7 is touched by the fixed contact 9a. Even when the excitation of the coil 1c is stopped, the same state can be held, and thus a so-called bistably operating polar relay is provided.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to relays, and more particularly to relays of the amateur rocking type.

[Conventional technology]

Conventionally, this type of relay, as shown in Figs. 3 and 4,
Armature 20, movable contact spring 21, yokes 24, 24, 25 that also serve as external terminals, and permanent magnets 26, 26
Consists of etc. The armature 20 is made of a substantially flat magnetic metal body, has a protrusion 20a formed on the lower center surface at which it swings, and has a movable contact spring 21 fixed thereto.

The movable contact spring 21 has movable contacts 22, 22 fixed to each of the two ends of the fork, and is a thin sheet metal shape that extends in a meandering manner in opposite directions from the upper surface of the protrusion 20a of the armature 20 to both sides. Support spring portions 21a, 21a are formed.

The movable contacts 22 face fixed contacts 23, 23 provided on yokes 24, 24, which also serve as external terminals, respectively,
It is provided so that it can come into contact with and separate from the fixed contacts 23 and 23 by excitation of a coil 27, which will be described later.

The yokes 24, 24 each include a pair of permanent magnets 26,
26 and are magnetized to the same polarity.

The tips of the support spring parts 21a, 21a are electrically connected to a yoke 25 which also serves as a common terminal by welding, caulking, or the like.

Each of the above-mentioned parts is disposed within a heath 28 made of a molded material such as synthetic resin, around which a coil 27 is wound.

Now, when the coil 27 is excited, the support spring portion 21a,
The armature 20 reverses around 2La, and the movable contacts 22, 22 at both ends of the movable contact spring 21 come into contact with or separate from the fixed contact 23, and the left and right contact states are reversed. Even if the excitation of the coil 27 is stopped, the permanent magnet 26
It is a relay that performs so-called bistable operation, which maintains the same state by 6n bundles of .

[Problem to be solved by the invention]

In the relay described in the conventional example, the movable contact spring 21 is directly fixed to the armature 20 by a method such as welding, and the number of parts can be reduced because there is no need for a special connecting member to connect the two together. However, amateur 2
0 is only supported by a yoke 25 which also serves as a common terminal by a protrusion 20a on the lower center surface, and the amateur 20
The mounting positioning and swinging support in the left-right and front-back directions are performed by a pair of support spring parts 21a and 2 that extend in a meandering direction in the swing axis direction.
1a is welded and fixed to the yoke 25, so the support spring portion 2 for the yoke 25 is
ia, 21a welding position variations, both support spring parts 2
Due to variations in the welding conditions between 1a and 21a, there was a problem in that the swinging support state of the armature 20 varied and stable operating characteristics could not be obtained.6 The present invention focuses on the above problem and aims to improve it. The purpose of this is to provide stable support for the can.
The aim is to provide a relay with stable operating characteristics.

[Means for Solving the Problems] In order to achieve the above object, the relay of the present invention is provided with a shaft portion pivotally supported by a base on both sides of the armature, and a support spring portion connected to an external terminal is provided with a movable contact spring. It is set up in

[For production]

By providing a swing shaft part on the armature itself, the swinging of the armature is stabilized, and a support spring part connected to an external terminal is provided on the movable contact spring integrally attached to the armature. Since the shape of the swing shaft and the connection of the external terminal can be handled separately, there is no variation in swing support due to fixation of the support spring portion.

[Example] An example of the present invention will be described below in Figs. 1 and 2 (a) - (
The explanation will be based on d).

The relay of the present invention includes a coil block l, a permanent magnet 3,
It is composed of an amateur block 4, a base 8, and a case 11.

The coil block 1 consists of a substantially U-shaped iron core 2 and a coil frame having a coil 1c wound therebetween and collars 1a and 1a at both ends.

Both ends of the iron core 2 are provided with flange portions 1a as shown in FIG. 2(c).
, la, and magnetic pole portions 2a, 2a are formed at portions extending from the collar portions 1a, 1a.

The permanent magnet 3 is inserted between the magnetic pole parts 2a, 2a of the iron core 2, and has both ends thereof magnetized with the same polarity (for example, S pole), and the middle part thereof is magnetized with a different pole (for example, N pole) from both ends.

The Amazure Bronok 4 has a substantially flat slope shape, with both ends 5b and 5c reversibly facing the magnetic pole parts 2a and 2a of the iron core 2, and shaft parts 5a and 5a extending from both sides of the middle serving as arcuate swing shafts. Amateur 5 made of magnetic metal material. , and a movable contact spring 6 attached by welding at two locations 6e and 6e on the upper surface of the amateur chair 5.

The movable contact spring 6 is cut and raised from the middle, and movable contacts 7, 7 are attached to the bifurcated ends, respectively, and the movable contact spring 6 is electrically connected to the common terminal connection portion 9b described later on the upper surface of one shaft portion 5a of the armature 5. A connected spring support portion 6c is integrally formed.

The base 8 is made of a generally box-shaped material such as synthetic resin,
A plurality of contact terminals 9 and coil terminals 1O, which are partially buried, extend from the opposing side walls.

Fixed contacts 9a, 9a are provided at one end of the contact terminals 9, 9 provided on both sides of the contact terminals 9, 9, 9 to be exposed at the opening edge of the base 8, and are opened and closed by the movable contact 7. It is fixed. Moreover, at one end of the intermediate contact terminal 9,
A common terminal connecting portion 9b electrically connected to the support spring portion 6c of the movable contact spring 6 is provided.

Incidentally, the connection between the contact terminal 9, which is an external common terminal, and the movable contact spring 6 which is returned can be easily performed by connecting the support spring portion 6c to the common terminal connection portion 9b in this manner.

An insulating wall 8d is provided in the intermediate recess of the base 8 to insulate and isolate the coil chamber 8C in which the coil block 1 is provided and the contact chamber 8d in which the contact portion is provided,
Above the insulating wall 8d and on the inner surface of the side wall where the common terminal connection portion 9b is provided, the shaft portions 5a and 5 of the armature 5 are provided, respectively.
Bearing portions 8b, 8b for pivotally supporting the shaft a are formed.

The case I1 has a substantially box shape and is fitted onto the base 8.

? , when the coil lc is energized, the armature block 4 is moved by the shaft portions 5a, 5a of the armature 5 serving as the swing axis, and the movable contact spring 6 attached to the armature 5 also swings in reverse. Movable contacts 7, 7 provided at both ends abut or separate from fixed contacts 9a, 9a, respectively. The same state is maintained even when the excitation of the coil 1c is stopped.

Next, when the coil 1c is reversely excited, the armature block 4 again swings in the opposite direction, and the contact relationship between the movable contacts 7, 7 and the fixed contacts 9a, 9a is also reversed,
The movable contact 7 that was in contact with the fixed contact 9a is separated from the fixed contact 9a, and the movable contact 7 that was in contact with the fixed contact 9a comes into contact with the fixed contact 9a. Even if the excitation of the coil fl 1c is stopped, the same state is maintained, and it is a so-called bistable polarized relay.

〔Effect of the invention〕

As explained above, in the relay of the present invention, the armature itself is provided with a swinging shaft, so that the swinging of the armature is stabilized, and the movable contact spring integrally attached to the armature is connected to an external terminal. By providing a support spring section, the shape of the swing axis and the connection of the external terminal can be handled separately, so there is no variation in swing support due to fixation of the support spring section, making it possible to create a relay with stable operating characteristics. Obtainable.

[Brief explanation of drawings]

1 is an exploded perspective view showing an embodiment of the present invention, FIG. 2(a) is a plan view of the same, FIG. 2(b) is a lateral cross-sectional view of the same, and FIG. FIG. 3 is a side sectional view showing a conventional example, and FIG. 4 is a perspective view of essential parts of the same. 1C...Coil, 2...Iron core, 5...Amateur, 5a, 6...Movable contact spring, 6d 9a, 9a...Fixed contact. ...Shaft part, ...Support spring part, Fig. 112

Claims (1)

[Scope of Claims] 1) An iron core around which a coil is wound, an armature to which a movable contact spring is fixed and is swingably disposed with respect to the iron core; The relay has a fixed contact that connects and separates, characterized in that a shaft part that is pivotally supported by a base is provided on both intermediate sides of the armature, and a support spring part that is connected to an external terminal is provided in the movable contact spring. relay.