JPH0129708Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field: This invention is a so-called flexure-type relay contact spring installation in which a movable contact spring is pushed by an insulating plate attached to a movable piece, and contact contact force is secured by the deflection of the spring. Regarding improvements to the department.

Conventional technology: In many ordinary relays, one end of a contact spring is constructed as a direct lead-out terminal, but in this type of relay, in which the contact force is obtained by the deflection of the contact spring, the main issues are the material and strength. The lead-out terminal and the contact spring were constructed from different members, and both were fixed by pressure contact within a through hole provided in an insulating base.

However, since both pressure contact parts were coaxial with the contact provided on the upper part of the contact spring, when the contact spring was inserted into the insulating base, the contact position and the coaxial part were pressed, causing the contact spring to deform. There was a problem where the operating characteristics of the relay became unstable. Also,
When using the relay after assembly, the force due to the movement of the contact spring during the contact opening/closing operation acts on the base end of the contact spring, but this force is directly applied to the pressure contact between the contact spring and the lead-out terminal. There was a risk that the press-contact part would move and the relay's operating characteristics would become unstable, or that the press-contact part would have poor contact.

Purpose of the invention or problem to be solved: This invention was devised in view of the above points, and is designed to prevent the contact spring coaxial with the contact mounting position from being deformed when the contact spring is inserted, and to prevent the contact spring from deforming during relay use. It is an object of the present invention to provide a contact spring mounting portion for a relay in which the operating characteristics of the relay are stabilized by eliminating movement of the pressure contact portion between the contact spring and the lead-out terminal.

The structure of the idea or the means for solving the problem;
An embodiment of this invention will be described with reference to FIGS. 1 to 3. Reference numeral 1 denotes an insulating base, and lead-out terminals 2 and 3 are implanted at symmetrical positions on the base. 4,
5 are movable and fixed contact springs, and are arranged symmetrically with each other by sandwiching the barrier 10 formed on the base 1, and the contacts 4 are arranged at the upper end of each spring.
1 and 51 are attached by caulking or the like, and the contacts 41 and 51 are provided so as to face each other when installed. Further, the contact springs 4 and 5 have pieces 42 and 52 extending in the lateral direction, that is, in a direction perpendicular to the longitudinal direction of the contact springs, at their lower base end portions.
are extended, and their ends are bent at right angles to form wavy portions 42A, 52A. In addition,
These contact springs 4 and 5 are formed into the same shape during manufacture. M is an electromagnetic device composed of an iron core, a coil, and a yoke; 6 is a movable piece that attracts and releases the iron core based on the excitation and demagnetization of the electromagnetic device M; and 7 is a movable piece 6 and a movable contact spring. 4, when the movable piece 6 is attracted to the iron core, the insulating plate 7 is pressed in the direction of arrow p, causing the movable contact spring 4 to rise in the same direction, thereby creating a connection between the contacts 41 and 51. Make contact with the desired contact force.

Next, the procedure for connecting the contact springs 4 and 5 and the lead-out butterflies 2 and 3 according to this invention will be explained with reference to FIG. First, through holes 1A and 1B formed in the base 1
After installing the lead-out terminals 2 and 3 by press-fitting them from the upper surface of the base, the contact springs 4 and 5 are placed in a symmetrical position with the barrier 10 in between so that the contacts 41 and 51 face each other. Arrange it so that At this time, while grasping the extension pieces 42 and 52, the wavy portions 42A of each contact spring 4 and 5 are
By press-fitting 52A between the gaps 11 and 12 formed between the side end surface of the barrier 10 and the lead-out terminal, the elastic force of the wave-shaped parts 42A and 52A is used to close the gap between the lead-out terminal 2 and the contact spring 4. connection,
It also provides a connection between the lead-out terminal 3 and the contact spring 5. Note that 42B and 52B are window holes formed in each of the extension pieces of the contact springs 4 and 5 to prevent them from falling out, and are fitted and locked into a locking part (not shown) provided on the inner wall of the base. It's becoming like that.

Effects of the invention: Since this invention is configured as described above, the contact spring at the contact mounting position and the coaxial part will not be deformed when the contact spring is inserted, and the pressure contact between the contact spring and the lead-out terminal will not be damaged during use of the relay. Since there is no movement, the operating characteristics of the relay are stabilized, and there is no possibility that the press contact portion will have poor contact. In addition, since the contact springs 4 and 5 are configured with the same shape, the number of manufacturing mold surfaces can be reduced, and manufacturing costs can be reduced.

[Brief explanation of drawings]

FIG. 1 is a vertical sectional front view of the main part showing the structure of the contact spring mounting portion of the relay of this invention, FIG. 2 is a plan view of the same, and FIG. 3 is an exploded perspective view of the lead-out terminal and the contact spring. 1... Insulating base, 2, 3... Output terminal, 4...
Movable contact spring, 5... Fixed contact spring, 6... Movable piece, 7... Insulating plate, 10... Barrier, 11, 12
...Gap, 41,51...Contact, 42,52...
Extending piece, 42A, 52A...Wavied portion, M...Electromagnet device.

Claims (1)

[Claims for Utility Model Registration] 1. Consisting of a lead-out terminal of a relay implanted through an insulating base and a contact spring, the base end of the contact spring is perpendicular to the longitudinal direction of the contact spring. A piece extending in the direction is provided, a wavy part is formed at the tip of the extending piece, and the contact spring is fixed by pressure between the lead-out terminal and the barrier of the insulating base by utilizing the elasticity of the wavy part. A contact spring mounting part of a relay that is characterized by a 2 Utility model registration claim No. 1, in which a pair of contact springs are formed in the same shape and are attached symmetrically to the lead-out terminal of a relay, which is formed by implanting them in symmetrical positions on an insulating base. Contact spring mounting part of the relay mentioned in section.