JPH0353425A - Electromagnetic relay - Google Patents

Abstract

PURPOSE: To eliminate the necessity of a connecting member so as to reduce work expenses and automate manufacturing by providing a diode in the coil body of a relay winding wire for preventing connection between different polarities. CONSTITUTION: A connecting member 19 is composed of a diode and its connecting lines 19a and 19b are placed in fixed contact with a coil end 18a for one end and with a connection part 14 housed in a substrate for the other. A relay winding wire 18 is disposed in a coil body 17, its rear winding wire end is in contact with a linear connecting member inserted into the coil body 17 and its front winding wire end is wound and soldered around the connecting line 19a of the diode 19 for preventing connection between different polarities. Thus, part item and work expenses are reduced and relay manufacturing is automated.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to an electromagnetic relay according to the preamble of claim 1.

[Prior art] This type of known electromagnetic relay (DE-OS 3 4 232
In 71), the electronic components for the wiring of the relay winding are inserted into appropriate recesses in the board and are contacted by spot welding to the connections latched to the board of the relay. The relay windings are connected via a wire-shaped connecting member, which is embedded in the upper seven-flange end of the coil body. One bent end of this connecting member is in contact by spot welding with a connection fixed to the board, and the other bent end is in each case connected to a respective end of a relay winding. Wrapped and soldered.

Relays wired with suitable electrical elements to protect the relay windings against polarity connections and overvoltages can automate the production of the relays while minimizing component and labor costs. Efforts must be made to do so.

[Problem of the Invention 1 An object of the present invention is to provide a relay that can reduce work costs and automate manufacturing.

[Thousand Steps for Solving the Problems J The gist of the present invention that solves the above problems is as set forth in claim 1.

[Operations and Effects of the Invention 1] According to the present invention, the coil body of the relay winding is provided with a diode that prevents connections of different polarities, thereby making it possible to omit the connecting member that has been necessary heretofore. This makes it easier to additionally insert and contact a diode of this type into the relay, thereby eliminating the need for additional work.

These are features of the other claims or advantageous developments of the invention.

In a particularly advantageous embodiment, the diode is clamped by a connecting wire into a suitably formed recess in the coil body before contact. For this purpose, the contact wire of the diode is advantageously fixed between clamping ribs that are integral with the coil body. In order to enable the installation of the diode and good access to the area of the contact reservoir, the diode is preferably arranged at the upper flange end of the coil body on the side facing away from the flap armature. .

[Embodiment] In FIG. 1, a flap type movable relay operating as a converter relay for an automobile is indicated by the symbol IO. The relay is separated from the bottom group 11 and the magnetic stem 12 as a pre-assembled part. The bottom group 11 consists of a substrate l3 made of an insulating material and a flat insertion tongue 14 fixed to this substrate and protruding from the underside of the substrate. Above the base plate 13, a flat insertion tongue piece 14 is attached to the connecting lug 1. 4 a, the connecting lugs serve for the contact of the flat plug-in tabs 14 with relay contacts and winding connection elements, which will be explained later. The magnet/to system l2 is an L-shaped magnet. The magnetic yoke 15 includes a magnet yoke 15 and a coil core 16 fixed to the shorter leg of the magnet yoke 15 with a rivet. The coil core l6 has a coil body 17 made of insulating material.
is attached, and this coil body 17 is fixed to the coil core l6 at the free end of the coil core l6. A relay winding l8 is arranged on the coil body 17, and the end of the winding at the rear, which is not visible in the drawing, is in contact with a wire-shaped connecting member inserted into the coil body 17, and the winding at the front is connected to the coil body 17. The wire ends are wrapped around the connecting wire 19a of the diode 19 and soldered to prevent polarity connections. The magnetic yoke l5 is provided with a bearing point 20 at the end of the longer leg. This support location is cut out from a notch on the end surface side of the magnet yoke 15, and one end of the flap-shaped mover 21 is inserted into this notch. This seven-lap movable head 21, which is pivotably supported on the bearing point 20, is held by a mover return spring 22, which is connected to the support point 20 of the flap-type mover.
The end portion 21a that protrudes beyond the magnetic yoke l5
It is hooked between the protrusion 15a of. A plastic spring curved member 23 clipped to the magnet yoke l5 causes the movable element return spring 22 to
The movable member 21 is bent convexly toward the yoke l5, thereby fixing the flanop type mover 21 against displacement in the axial direction. The flap armature 21 is equipped with a leaf spring 24, one end of which is fastened to the seven-lap armature 21 by a rivet in the area of the bearing point 20. Leaf spring 2
A switching contact 25 is riveted to the other free end of 4 and cooperates with a working contact 26 and a resting contact 27. In the disconnected state of the relay, the flap-shaped armature is pivoted downward by the force of the return spring 22 and away from the coil core l6, so that the switching contact 25 abuts the resting contact 27 with the required contact pressure.

In the drawn state of the flanged armature 21 shown in FIG. It is made to bend. The working contact 26 is fixedly connected to the central flat bayonet tab 14 via metal webs (not shown) guided on both sides of the resting contact 27. The left flat insert tongue 14 is in contact with the leaf spring of the flap armature 21 via a short connecting core 28 .

The rest contact 27 is fixed to the upper end of the right flat insertion tongue 14 which is rotated by 90 degrees around its own axis with respect to the left and center insertion tongues 14 . Two other flat insertion tongues (not shown) are provided parallel to the right flat insertion tongue 14, and one of them is located in front of the right flat insertion tongue I4 shown in the figure. , and the other one are respectively fixed to the base plate l3 behind the flat insertion tongue piece 14. These two flat plug-in tabs (not shown) are each provided with connecting lugs 14a above the base plate, which are upright on either side of the actuating contact 26. The tip of the front connection lug 14a shown in FIG. 1 protrudes below the end of the connection line 19b of the diode 19 that prevents connection of different polarities. This connecting line 19b of the diode 19 is in contact with the connecting lug 14a by means of a welding point 29 and thus with an associated flat plug-in tab 14 (not shown). A rear connecting lug (not shown) is welded to the end of the connecting wire leading to the other winding end of the relay winding l8.

In particular, as can be seen from Figure 3, diode 19 is connected to relay e.
It is inserted into a positive connection of wire 18. A resistor 30 is inserted between the two connections of the relay winding 18 as a protection against overvoltage, and this is shown in FIG.
It is inserted into the groove 31 of No. 3. As can be seen in FIG. 3, the diode 19 is fitted into a suitably formed recess 32 in the area adjacent to the connecting lines 19a, 19b. This notch is located on the opposite side from the flap type mover 21,
It is provided at the upper seven flange ends of the coil body 17.

During assembly, the die lead with initially straight connecting wires 19a, 19b is first fixed between the clamping ribs 33 of the coil body 17, and then this connecting wire is brought into contact with the coil end 18a of the relay winding 18. It is then folded downward.

4

[Brief explanation of drawings]

FIG. 1 is an enlarged vertical sectional view of one embodiment of the present invention, FIG. 2 is a circuit diagram of a relay of the present invention, and FIG. 3 is a diagram showing the connection relationship between a part of the relay and a diode in FIG. be.

Claims (1)

[Claims] 1. A connecting portion housed in a substrate made of an insulating material and protruding from the bottom surface of the substrate, a magnet yoke fixed to the substrate and provided with a coil core, and a coil supported by the coil core and provided with a relay winding. a flap-shaped mover arranged in front of the coil core end and pivotably supported at one end on a magnetic yoke and provided with a switching contact; and at least one counter contact cooperating with the switching contact. , in which the ends of the relay winding are fixedly connected to the respective connection parts via connection members connected to the coil body, at least one connection member (19);
consists of a diode, and its connecting wires (19a, 19b)
is in fixed contact with the coil end (18a) on the one hand and with the connection part (14) accommodated in the board on the other hand. 2. The diode connects the coil body (
2. The electromagnetic relay according to claim 1, wherein the electromagnetic relay is inserted into a correspondingly formed recess (32) of the electromagnetic relay (17). 3. Electromagnetic relay according to claim 2, characterized in that the connecting wires (19a, 19b) of the diode (19) are arranged between integral clamping ribs (33) of the coil body (17). 4. The diode (19) is connected to the flange end (17a) of the coil body (17) on the side opposite to the flap type mover (21).
4. The electromagnetic relay according to any one of claims 1 to 3, wherein the electromagnetic relay is arranged in a.