JPS6239573Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a time-limited relay.

In general, time-limited relays are required to be of the plug-in type for socket mounting and of the front terminal type for panel mounting. In order to meet this demand, conventional plug-in formats were equipped with octal pins on the base, and front terminal formats were provided with separate cases equipped with front terminals for external connections at the top, and these front terminals and lead wires were attached to the base. A device is provided that is provided with a terminal that can be connected through.

However, this countermeasure has the disadvantage that it is necessary to prepare two types of bases: an octal pin type and a lead wire connection terminal type, which complicates the manufacturing process and inventory management.

This invention was made in view of the above drawbacks,
The purpose is to provide a time-limited relay that can share the same base between a plug-in type and a front terminal type, thereby simplifying the manufacturing process and inventory management.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the accompanying drawings, which are examples of the present invention.

In FIGS. 1 and 2, the time-limited relay according to the present invention generally includes a relay main body 1, a cover 15,
It is composed of a housing 30.

The relay main body 1 is a conventionally known one, and a contact drive mechanism consisting of a drive motor 2, a reduction gear mechanism 3 capable of changing the reduction ratio, a contact mechanism 4, a relay 5, a driven cam, a drive card, etc. is mounted in a molded frame made of resin. 6, and a time-limited setting mechanism 7 consisting of a dial 8, a setting pointer 9, etc. is provided on the upper part of the molding frame 6,
A base 10 is provided with an octal pin 11 at the bottom, and the octal pin 11 is connected to the electric motor 2,
A relay 5 is electrically connected to the contact piece according to a predetermined circuit.

As shown in Figs. 3 and 4, the cover 15 is
The terminal block 20 has a front terminal 21 for external connection press-fitted on both sides of the frame 16.
The cover 15 is attached so as to cover the upper part of the relay body 1, and the frame portion 16 is formed.
The terminal 26 is crimped and fixed to the lower protrusion of the front terminal 21 for external connection, and the other crimped terminal 27 is crimped and fixed to the octal pin 11, thereby connecting the front terminal 21 to the main body and a predetermined circuit.

As shown in FIGS. 5 and 6, the housing 30 is a cylindrical body with a bottom that opens upward, and is attached from below so as to cover the side and bottom portions of the cover 15, that is, the relay body 1. The cover 15 is fixed by engaging the hole 31 with the protrusion 19 of the cover 15.

The time-limited relay constructed as described above is of the front terminal type, and includes a recess 32 formed at the bottom of the housing 30 and a fitting 33 biased toward the right in FIG.
It is fixed to a rail (not shown) with a front terminal 21, and wiring to the outside is performed through a front terminal 21.

To make this time-limited relay a plug-in type,
As shown in FIGS. 7 and 8, another cover 28 is attached to the relay body 1. This cover 28 is the same as the cover 15 except for the terminal block portion 20, and the octal pin 11 is exposed below, and can be attached to and removed from a socket (not shown) using the octal pin 11.

That is, the base 10 can be manufactured in common for the front terminal type and the plug-in type, and the cover 28 of the plug-in type can be manufactured for the front terminal type.
The cover 22 and housing 30 may be attached instead.

As is clear from the above explanation, according to the present invention, in the case of the front terminal type, a cover equipped with a front terminal for external connection is attached to the side of the relay body, and the other end of the lead wire connected to the front terminal is attached to the side of the relay body. Since the crimp terminal is crimped and fixed to the octal pin of the base and the housing is attached to the outside thereof, a plug-in type can be achieved by simply attaching a separate cover in place of the cover and housing described above. That is, since the base can be shared between both types, the relay main body can be assembled as a common relay body for both types, and the manufacturing process and inventory management are greatly simplified.

[Brief explanation of the drawing]

Fig. 1 is a plan view of the time-limited relay according to the present invention, Fig. 2 is a sectional view thereof, Fig. 3 is a plan view of the cover, Fig. 4 is a half sectional view thereof, Fig. 5 is a plan view of the housing, and Fig. 5 is a plan view of the time-limited relay. 6 is a half sectional view thereof, FIG. 7 is a plan view of the time-limited relay in a plug-in type, FIG. 8 is a sectional view thereof, FIG. 9 is a plan view of the cover, and FIG. 10 is a sectional view thereof. 1...Relay body, 2...Drive motor, 3...
... Reduction gear mechanism, 4 ... Contact mechanism, 6 ... Forming frame, 7 ... Time-limited setting mechanism, 10 ... Base, 11
... Octal pin, 15 ... Cover, 20 ... Terminal block section, 21 ... Front terminal for external connection, 25 ...
Lead wire, 26, 27... crimp terminal, 30... housing.

Claims (1)

[Scope of utility model registration request] A driving electric motor, a reduction gear mechanism, a contact mechanism, and a contact drive mechanism are integrally attached to a molding frame, a time-limited setting mechanism is provided at the top of the molding frame, and a base with an octal pin is provided at the bottom to form the relay body. In a time-limited relay, a cover with a front terminal for external connection on the top is attached to the side of the relay body, one end of the lead wire for internal wiring is connected to the front terminal for external connection, and the other end of the lead wire is connected to the front terminal for external connection. is connected and fixed to an octal pin of the base, and a bottomed housing is attached that covers the sides and bottom of the cover.