JPS6036052B2 - polarized relay - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a balanced amateur type polarized relay which is bistable and in which a pair of bush points turn on or off together when the armature block rotates in one direction.

In this type, the pair of contacts consists of a flexure contact and a lift-off contact, but each contact spring that makes up the lift-off contact and the flexure contact is An imbalance occurs between the spring loads.

In other words, in order to keep one flexure contact on, a pressing force must be applied to the contact spring, but at this time the spring load on the bush point spring increases because it is in contact with the fixed contact. . On the other hand, although a pressing force is necessary to keep the lift-off contact off, the spring load of the bush point spring of the IJ lift-off contact at this time is not so strong because it is in a state away from the fixed contact. For this reason, the latching operation type has the disadvantage that there is a difference in the impressed voltage between on and off, and it is difficult to match the attraction force with high sensitivity. The present invention has been made in view of these points, and its purpose is to eliminate the unbalance of the spring load between the flexure contact and the IJ foot-off contact, and to equalize the applied voltage between on and off. It is an object of the present invention to provide a polarized relay that is easy to adjust and that can achieve high sensitivity because it conforms to the characteristics of the composite spring load or attraction force of both contact springs.

The present invention will be described in detail below based on illustrated embodiments.

Amateur block 1 is a pair of parallel amateurs 2, 2
The armatures 2 and 2 are insert-molded with the armatures facing each other with a space between them, and a permanent magnet 3 is inserted between the armatures 2 and 2 to magnetize them to different polarities. A rotating shaft 9 is suspended downward from one side of the center portion of the amateur block, and a pair of cards 10, 10 are attached to one side of the amateur block 1 at approximately the same distance from the rotating shaft 9. Reference numeral 6 denotes a coil frame around which the coil 5 is wound, and the coil frame 6 has a yoke 4 passing through the coil frame 6 in its direction.

Both ends of the yoke 4 are bent upward at both ends of the coil frame 6. 18 is a coil terminal plate.

The body 1, on which the coil frame 6 is mounted on the upper surface of one side, has movable contact terminal plates 15, 15 inserted at both ends of the other side, and a pair of fixed contact terminal plates 13, 13 inserted in the center. Fixed contact 12 at 13, 13
, 12 have opposite mounting surfaces. On the coil frame 6 side of the shielding piece 17 erected between the coil frame 6, the movable contact terminal plate 15, and the fixed contact terminal plate 13, there is provided a shielding piece 17 on the side of the coil frame 6, which rotates the armature block 1 by receiving the rotary shaft 9 of the armature block. A bearing 19 is provided to freely hold it. Both ends of the yoke 4 are located in the space between the armatures 2, 2 of the armature block mounted on the body 11 at both ends of the armatures 2, 2. Due to the magnetization of the yoke 4 by the coil 5, the yoke 4
An attractive force selectively acts between the magnetic pole of the armature block 1 and the magnetic pole of the armature block 1, and the armature block 1 rotates. With this rotation, the cards 10, 10 on the side of the amateur block 1 drive the pair of contact springs 7, 7. Of both contact springs 7, 7, which have a movable contact 14 at the tip and a movable contact terminal plate 15 at the rear end, one pocket spring 7 has a flexure contact that separates from the fixed contact 12 under no load, and the other The flea spring 7 forms a lift-off contact that contacts the fixed contact 12 under no load. The movable contact 14 is attached to the surface of the contact spring 7 constituting the lift-off contact on the side of the armature 2, and the movable contact 14 is attached to the surface of the contact spring 7 on the opposite side to the surface on which the movable contact 14 is attached. An auxiliary spring 16 is attached to the same movable contact terminal plate 15. The free end of the auxiliary spring 16 does not always come into contact with the bush point spring 7, but comes into contact after the contact spring 7 is pressed and moves away from the fixed contact 12, increasing the spring load on the contact spring 7. be. In other words, as shown in Fig. 4, the spring load L of the flexier contact, the spring load of the IJ foot-off contact, and the spring load of the auxiliary spring are the combined spring loads L at the end of the armature stroke on the off side of the contact. Its value increases at , so that it becomes equal to the value of the spring load on the on side of the contact. Therefore, in the adjustment after assembly, the touching voltage for turning off the contact when it is on is adjusted by the push amount of the flexure contact to set the touching ampere turn AT^, and then the touching voltage when the contact is off is adjusted to the above-mentioned touching voltage. The impressive ampere turn ATB is set by adjusting the spring force of the auxiliary spring 16 so that it is equal to the voltage. AT in the figure. is a zero ampere turn which is the attractive force by the permanent magnet 3, and ATB' is an impressive ampere turn in a state without the auxiliary spring 16. In order to increase the spring load on the lift-off contact, instead of using an auxiliary spring, as shown in FIG. At the end of the process, the bush point spring 7 may come into contact with the extension part 20.

8 in the figure is a cover.

[Brief explanation of drawings]

Fig. 1 is an exploded perspective view of one embodiment of the present invention, Fig. 2 is a plan view of the same as the above, Fig. 3 is a plan view of the main parts of the same as the above, Fig. 4 is a characteristic diagram of the same as the above, and Fig. 5 is another embodiment. It is a principal part top view of an example. 1 is an armature block, 2 is an armature, 3 is a permanent magnet, 4 is a yoke, 5 is a coil, and 7 is a bush point spring. Figure 3 Figure 1 Figure 2 Figure 4 Figure 5

Claims (1)

[Claims] 1. A pair of armatures facing each other across a space, a rotatably supported armature block equipped with a permanent magnet that magnetizes both armatures with different polarities, a yoke located in the space between both armatures, and a coil that magnetizes the yoke. and a pair of contact springs driven by an armature block that rotates by selective attraction acting between the magnetized yoke and the armature, one contact spring serving as a flexior contact and the other contact spring as a lift-off. A bistable type polarized relay constituting a contact, characterized by comprising an auxiliary member that increases the spring load of the contact spring next to the lift-off contact at the end of the stroke that turns off the contact of the armature block. Polarized relay.