JPS5818200Y2 - socket - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a socket for mounting a small relay or the like.

Conventionally, in this type of socket, in order to prevent the contacts installed inside the socket body from falling off, a back cover is attached to the back of the socket body with the external terminal part of the contact passing through. A device was provided in which a lead wire connected to the main circuit was soldered to the external terminal section.

However, when incorporating components such as semiconductors, the lead wires of the semiconductors, etc. are soldered to the external terminals of the contacts at the same time as the main circuit lead wires, making attachment and detachment when replacing the semiconductors, etc. difficult. It had certain drawbacks.

In addition, in order to connect this type of socket to the main circuit, it is common to attach a lead break to the external terminal portion of the contactor, and it has been impossible to connect it to a connector.

The present invention was developed in view of the above-mentioned drawbacks, and its purpose is to easily form an arbitrary circuit by connecting semiconductors, etc. to contacts separately from the lead wires of the main circuit, and to connect semiconductors to contacts separately from the main circuit lead wires. The purpose is to provide a socket that can also be connected.

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the invention will be described below with reference to the accompanying drawings.

In FIGS. 1 to 4, reference numeral 1 denotes a socket body made of phenolic resin, which has mounting holes 3.4 through which contact terminals and coil terminals of a relay (not shown) are inserted, penetrating through the front and back surfaces, and a stepped portion 2. A lead wire 8 of a semiconductor, for example, a diode 7, is inserted into the hole L5, 5, which is perforated through the front and back surfaces, and a projection 6 for thermal caulking is integrally formed on the back surface.

Reference numeral 9 denotes a well-known contact made of a conductive material, and the external terminal portion 9a extends to one side and is bent downward, and is installed by being inserted into the mounting holes 3 and 4 of the socket body 1 from below. This is accomplished by attaching a back cover 10, which will be described below, to the back surface of the socket body 1.

The reason why the external terminal portion 9a of the contactor 9 is extended to one side is because the pinch of the external terminal of the cassette relay, that is, the pitch of the mounting hole 3 is narrow, so that it is widened on the back surface of the socket body 1.

The horizontal portion of the external terminal portion 9a is installed in a groove (not shown) formed on the back surface of the socket body 1.

Among them, the external terminal portions 9a do not all extend laterally, and the contacts 9 at both ends shown in FIG. 3 extend 1=1 downward.010 is a printed wiring board. This back cover also serves as Corresponding holes 12 and 13 and a hole 14 corresponding to the lead wire 8 of the diode 7 are bored, respectively, and printed wiring using copper foil 15 is provided between the holes 13 and 14.

The back cover 10 has the protrusion 6, the external terminal part 9a of the contact 9, the lead wire 8 of the diode 7 passed through the respective holes 12, 13, 14, and is positioned on the back surface of the socket body 1, and is thermally caulked to the tip of the protrusion 6. Fix by doing this.

Then, each end of the copper foil 15 is connected to the lead wire 8 and the external terminal portion 9a of the contactor 9 by soldering.

Further, the lead wire (not shown) of the main circuit is soldered to the external terminal portion 9a as in the conventional case.

Therefore, when a relay is installed in the socket body 1, the diode 7 will be connected in parallel to its coil terminal, and its lead wire 8 will be connected to the contact 9 separately from the lead wire of the main circuit. Ru.

For the back cover 10, it is possible to use variously modified flint wiring patterns using the copper foil 15.
It is possible not only to form a protection circuit by connecting the diode 7, but also to form a self-holding circuit.

FIG. 5 shows a back cover 10 according to another embodiment, in which a printed broken line of copper foil 15 is inserted from each hole 12° 13 into the back cover 1.
The external terminal part 9a of the contactor 9 is passed through the holes 12 and 13 and soldered, and the negative side part 10a is connected to a connector (not shown) as appropriate. inserted and connected to the main circuit.

The present invention has a hole for passing the external terminal part through and a hole for mounting an electronic component when fixing the external terminal part of a contactor to be attached to the socket body. Since the mounting is done using a printed wiring board with a conductive pattern that connects the holes, the external terminal section and the electronic component mounting are soldered and fixed in separate parts, and this external terminal section The workability of connecting the electronic component and the lead wire from the main circuit is much easier than the work of simultaneously connecting the electronic component and the lead wire to the external terminal portion.

Further, if the printed wiring connected to the external terminal portion of the contactor is extended to one side of the back cover, it is convenient because it can be connected to the connector at the negative side.

[Brief explanation of the drawing]

The drawings show each component of the socket according to the present invention. Fig. 1 is a perspective view of the socket body, Fig. 2 is a perspective view of the contact, and Fig. 3 is a state in which the contact and the diode are attached to the socket body. A front view, FIG. 4 is a plan view of the back cover, and FIG. 5 is a front view of the back cover of another embodiment. 1...Socket body, 7...Diode, 8...
Lead wire, 9... Contact, 9a... External terminal part, 1
0... Back cover, 12, 13, 14... Hole, 15...
Copper foil (printed wiring).

Claims (2)

[Scope of utility model registration request] (1) A socket body into which a relay or the like can be mounted, a contact mounted inside the socket body and electrically connected to an external connection terminal such as a relay, a hole for mounting an electronic component, and an external terminal portion of the contact. A printed wiring board is provided in which the hole for mounting the electronic component is connected to a hole through which the external terminal portion of the contact is passed through with a conductive pattern, and this printed wiring board is attached to the back side of the socket. A socket characterized in that the contactor is fixed by being attached. (2) A conductive pattern electrically connected to an external terminal portion of the contactor extends to one side, and can be connected to a connector at this negative side. The socket described in item 1.