JPS5823694B2 - Yuukiyokukei Denki - Google Patents

Description

[Detailed description of the invention] The present invention relates to a balanced armature type polarized relay.

In the conventional balanced armature type polarized relay, 3
A polarized relay in which the contact configurations a and 1b are configured, that is, three contacts are normally open contacts and one contact is normally closed, has not been proposed, and the contact configurations 3a and 1b that have been proposed for non-polar relays are structurally was extremely complex and had poor sensitivity.

The present invention eliminates the above-mentioned drawbacks, and with a simple structure, 3a
, ib contact configuration is provided.

Next, the polarized relay of the present invention will be explained with reference to the drawings.

1 to 4, a coil block 1 is held on a support frame 2, and a coil 5 is wound around a U-shaped iron core 3 having both ends protruding as magnetic pole pieces 4.4.

Further, the outer ends of the magnetic pole pieces 4, 4 are provided so as to slightly bulge out from the end surface of the support frame 2, and engaging protrusions 6, 6 are provided on each side surface on both sides.

7 and 7 are coil lead wires, 8 is a contact block provided with a recess 9 in which the coil block 1 can be accommodated, and contact terminals 10, 10, 11, 11 are arranged in two rows facing each other on the top surface.
are protrudingly provided, and terminals 12.12 to be connected to the coil lead wires are implanted on the upper surface of both sides in the longitudinal direction, and furthermore, the contact terminals 10, 10.11° 11 and the coil terminals 12 are implanted on the lower surfaces of both sides. .12 and the lead-out terminals 13,
13, 14, 14 and 15° 15 are aligned and protruded in two rows.

The magnetic pole piece 4 is attached to the inner upper edge of the contact block 8 in the longitudinal direction.
Recesses 16, 16 for receiving the outer end portions of the angle 4 are formed, and recesses for engaging the engaging protrusions 6, 6 are formed on the inner wall surface corresponding to the side surfaces on which the engaging protrusions 6, 6 are provided. 17°; 17 are provided oppositely.

18.18.18.18a has the base bent into an L shape,
Three pieces are fixed inside the contact terminal 10 on the center side, and one
The movable contacts 19, 19.
One of the movable contacts 19 of the three contact springs 18 is provided so as to contact the contact terminals 11 at both ends from the outside, and the movable contact 1 of the remaining one contact spring 18a is fixed.
9a is provided so as to come into contact with the contact terminals 11 on both end sides from inside.

20 has one end connected to the contact terminal 10 together with one of the contact springs 18.
A plate spring 21 fixedly attached to the coil block 1 is a bearing plate having notches 22° 22 formed therein corresponding to the magnetic pole pieces 4 protruding from the coil block 1, and a shaft 23 is implanted in the center thereof.

Reference numeral 24 designates an amateur block having a shaft hole 25 protruding from the center thereof through which the shaft 23 is inserted, and holes 26, 26 for housing magnets 27, 27 on either side of the shaft hole 25.

Further, at both ends of the armature block 24, projecting pieces 28, 28 for engaging the magnetic pole pieces 4, 4 are extended in parallel, and protrude outward in a direction perpendicular to the longitudinal direction thereof. A card 29, 29.29 that can press the contact spring 18, 18, 18 located thereon and a slightly protruding card 29a that can press the contact spring 18a are arranged opposite to each other.

Reference numeral 30 denotes a cover in which a receiving portion 31 for the shaft 23 is formed on the inner wall of the upper surface, and its lower edge abuts against the stepped portion 8a of the contact block 8.
It is fixed.

Then, the outer ends of the magnetic pole pieces 4, 4 are fitted into the recesses 16.16, the engaging protrusions 6.6 are fitted into the recesses 17, 17, and the coil block is inserted into the recess 9 of the contact block 8. 1, and a contact opening/closing member group consisting of a contact spring 18° 18, a bearing plate 21, an armature block 24, etc., and a case 30 is attached to assemble the polarized relay of the present invention. Can be done.

Therefore, the polarized relay excites the coil 5 and rotates the armature block 24, so that the cards 29, 2
At 9.29, the contact springs 18.18 and 1B are pushed forward to open two contacts and close one contact, and at the same time, the card 29a
The pressing force on the contact spring 18a is released to open one contact.

Alternatively, the armature block 24 is followed to close three contacts and open one contact.

According to the electromagnetic relay of the present invention configured as described above, 2
To obtain a relay that has a simple configuration with three normally open contacts and one contact as a normally closed contact based on the same idea as the structure in which one contact is a normally open contact and the other two contacts are normally closed contacts. It has remarkable effects such as:

[Brief explanation of the drawing]

, Fig. 1 is an exploded perspective view of the polarized relay of the present invention, Fig. 2 is a cross-sectional view thereof, Fig. 3 is a longitudinal sectional view thereof, and Fig. 4 is a cross-section taken along line A-A in Fig. 2. It is a diagram. 1... Coil block, 2... Support frame, 3... Iron core, 4... Magnetic pole piece, 5...
...Coil, 6...Engagement ν protrusion, 7...
...Coil lead wire, 8...Contact block, 9
・・・・・・Recess, 10.11・・・Contact terminal,
12...Terminal, 13,14.15...
Output terminal, 16... recess, 17... engaging recess, 18, 18a... contact spring, 19.
19a...Movable contact, 20...--plate i spring, 21...bearing plate, 22...notch,
23...Axle, 24...Amateur block, 26...Hole, 27...Magnet,
28... Projection piece, 29.29a... Card, 30... Cover, 31... Receiving part.

Claims (1)

[Claims] 1. A contact opening/closing member group consisting of an armature block etc. rotatably mounted on a bearing plate is mounted on the combined body of the coil block and the contact block, and the coil of the coil block is mounted. In a relay that rotates the armature block by excitation to open and close the contacts, four contact terminals are provided on each side of the upper surface of the contact block to protrude from each other and make contact with the contact terminals at both ends. Possesses movable contacts. The husband attaches one of the four contact springs, one end of which is fixed to the contact terminal in the center, in the opposite direction to the other three, and presses the three contact springs against the armature block. Move the movable liquid by pushing the contact spring installed in the opposite direction to the card that opens and closes the movable contact. A polarized relay characterized by having a protruding card that opens and closes points.