JPS5832184Y2 - relay - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a relay such as a time relay.

A conventional relay of this type has a case body 1 as shown in Fig. 1.
The printed wiring board 2 is installed in the case body 1 in a direction perpendicular to the relay yoke 4 of the relay drive mechanism section 3 by fitting both ends of the printed wiring board 2 into the vertical grooves provided on the opposite inner walls of both sides. However, when a plurality of printed wiring boards 2 are attached, there is a problem in that it is difficult to stably attach all the printed wiring boards 2 to the case body 1 during assembly.

As shown in FIG. 2, relays have also been provided that have a structure in which a support 5 made of a metal fitting or a molded product is attached to the relay yoke 4 and a printed wiring board 2 is fixed to this support 5. However, there is a problem in that it is unstable to secure a distance between the wires and the electronic circuit components wired to the printed wiring board 2, and a problem arises in dielectric strength.

The present invention was developed in view of the above-mentioned drawbacks, and its purpose is to improve the electrical insulation between the relay drive mechanism and the electronic circuit of the printed wiring board by providing a partition wall, and to improve the electrical insulation between the relay drive mechanism and the electronic circuit of the printed wiring board. To provide a relay in which a printed wiring board can be reliably attached to a stepped surface provided on the inner wall of the body, and which is excellent in assemblability. explain.

The case body 1 is made of an insulating material such as a synthetic resin molded product, and a partition wall 6 is provided at the center of the interior of the case body 1, and the front, rear, left, and right ends of the case body 1 are continuous with the four inner walls. The internal space is divided into upper and lower parts by this partition wall 6.

In the internal space of the case body 1 below the partition wall 6, a relay yoke 4, an excitation coil T, an opening/closing contact part 8, etc. are fixed on a mousse 9, and terminals 10 such as a power input terminal, a relay output terminal, etc.
The relay drive mechanism section 3 which protrudes from the lower surface of the base 9 is installed and removed, and the base 9 closes the lower opening of the case body 1.

On the other hand, in the internal space of the case body 1 above the partition wall 6, the left and right or front and rear no.
Forming the step 12 of the step support, the illusion 1''.

The ends of the printed wiring board 2 are placed on the upwardly horizontal step surfaces 11 of the corresponding first and second steps, and fixed by appropriate means such as thermal bonding, and the printed wiring board 2 is assembled as shown in the figure. Two pieces are arranged in parallel above and below in the case body 1.

These printed wiring boards 2 are wired with an electronic circuit such as a timer circuit for controlling the relay drive mechanism 3, and the upper and lower printed wiring boards 2 are electrically connected by lead wires 13, and The lower printed wiring board 2 has a hole in the partition wall 6: the lead wire 13a is inserted through the insertion hole 14.
The relay drive mechanism unit 3 is electrically connected to the relay drive mechanism unit 3.
The control output connection and power supply between the printed wiring board 2 and the printed wiring board 2 are performed.

A plate 15 is placed and fixed on the top step surface 11,
The upper opening of the case body 1 is closed.

Since the present invention is configured as described above and has a partition wall, the printed wiring board stored in the upper space of the case body,
The electrical insulation between the relay drive mechanism section housed in the lower space of the case body is improved and the insulation is ensured, and it has the advantage of not causing troubles such as poor dielectric strength. Multiple step-like steps are formed on the inner wall of the case body, and the end of the printed circuit board is placed and fixed on each corresponding step surface of the step, so the printed circuit board is fixed to the step surface during the assembly process. This has the advantage that it can be confirmed from the top opening of the case body whether or not the case is installed properly, and as a result, assembly can be performed reliably.

[Brief explanation of drawings]

1 and 2 are sectional views of a conventional example, and FIG. 3 is a sectional view of an embodiment of the present invention, where 1 is a case body, 2 is a printed wiring board, 3 is a relay drive mechanism, and 6 is a sectional view of an embodiment of the present invention. Bulkhead, 9 is base,
11 is a stepped surface, 12 is a stepped portion, 13a is a lead wire, 14 is an insertion hole, and 15 is a plate.

Claims (1)

[Scope of utility model registration request] A plurality of stairs made of an insulating material and integrally provided with a partition wall that divides the internal space into two vertically in the approximate center thereof, and each having a horizontal and upward step surface on at least one row of opposing inner walls above the partition wall. A case body that forms a stepped part and is open at the top and bottom, respectively, and an IJL that is housed in the case body space below the partition wall and closes the bottom opening of the case body directly on the base.
/- A plurality of printed wiring boards to which electronic circuits such as a drive mechanism section and I) a timer circuit section for controlling the drive mechanism section are wired, and both ends thereof are respectively placed and fixed on the stepped surfaces of opposing step sections. and a plate that closes the upper opening of the case body, and electrically connects the relay drive mechanism section and the electronic circuit through a lead wire that is inserted into the main shaft insertion hole that penetrates the upper and lower parts of the partition wall. relay