Electromagnetic relay

Details Electromagnetic relay Electromagnetic relay

2000-03-09

2001-04-10

Barrera, Ray (Department: 2832)

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Polarity-responsive

C335S202000, C336S192000

Reexamination Certificate

active

06215380

ABSTRACT:

BACKGROUND INFORMATION
An electromagnetic relay is described in German Patent No. 34 23 270. The relay includes a magnet system and a base group. Each of these modular units can be manufactured separately, so that functional testing and measurement tests can be carried out separately for each modular unit. Modular units which have been thus prepared are joined together in an assembly process, contact being created between electrical components and connector elements assigned to a base plate of the base group.
The base plate has recesses that leave space on either side of a given connector element in the area around a contact, this being designed as a weld point, so that a welding tool can be introduced.
If the contact between a connector element and a component is created in this way, the relay is more difficult to manufacture, as additional material is required for welding, stray particles and spatter have to be collected, and the tolerance for the position of the weld is very narrow.
To ensure that the welding machine can gain access to the location to be contacted, the base plate has recesses which leave space on either side of the connector element in the area around the weld point, so that a welding tool can be introduced. This is a disadvantage, as the relay has a large unit size.
SUMMARY OF THE INVENTION
The electromagnetic relay according to the present invention has the advantage that the aforementioned shortcomings can be avoided to a satisfactory degree.
To accomplish this, the base plate of the base group has a recess, which is largely filled when a component having a component wire is inserted and which is used to fix the component having the component wire in position.
A connector element, designed as a flat pin, has a hole that is created directly in the connector element, no additional material being required. When the flat pin is inserted into the base plate, this hole grasps the component wire that is fixed in position there, contact being created with the formation of an electrical contact.
An electrical contact created in this way is inexpensive to manufacture. It can be created without using additional material, and allows a small, compact relay to be manufactured, as no additional space is required on the base plate for the tool that creates the contact.


REFERENCES:
patent: 5291166 (1994-03-01), Chikira
patent: 34 23 270 (1986-01-01), None

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