ES2274334T3 - MANUFACTURING PROCEDURE OF MANUFACTURING A SET THAT CONSTITUTES A RELAY AND SET THAT CONSTITUTES A RELAY. - Google Patents

Abstract

Each relay yoke plate (11) is placed in an exact position with respect to the electric contacts, and they are held by a first carrier band (5) during the spraying process. There are two contact strips (7,8) mounted on connecting strips (9,10) attached to the first carrier band. A second carrier band (6) has distance pieces (23) carrying the yoke plates. Components are carried through several manufacturing steps (P1-14) on three lines (R1-3). Components are moved from the first and third lines onto the second line to help assemble the finished relays.

Description

Manufacturing procedure of a set that It constitutes a relay and set that constitutes a relay.

The invention relates to a method of manufacture of a set that constitutes a relay and a set That constitutes a relay.

Electromagnetic relays are used in the more varied sectors of the technique, and particularly in the car manufacturing The development and manufacture of relays are subject to strong cost pressures, so it seeks to achieve a simplification of the form constructive and an economical manufacture of the relays. To achieve Precision operation is necessary when designing the relays keep measurements accurate. For example it is necessary that the switching contacts have a set distance with which an electrical connection is established between two contact connections This establishes the Relay behavior as switching element. It is also advantageous that it is also precisely established in the relay the position of the armature, which triggers a switching contact. The armor is held in the relay for example by means of spring elements, so they must also be maintained with Precision its geometry and position.

In the European patent application that has not yet been published and has deposit number 02 025 435.5 is described a relay in which an electromagnetic coil is provided which is provided with a yoke in L and is subject to an operation of surrounding injection molding thus becoming a construction set with a contact connection. With that remains established in a single surrounding molding operation by injection the position of the yoke referred to the position of a Contact. This gives a safe and economical fixation of the positions.

From DE 19627845 C1 a known generic procedure for the manufacture of a relay electromagnetic that is formed based on two semi-capsules. A First semi-capsule is formed by surrounding molding by injection of a coil with a U-core. The second semi-capsule is formed by surrounding molding by injection of a spring holder and at least one spring contact element. Be fix a contact spring with an armature to the spring holder flat. By joining both semi-capsules it is adjusted and closed  at the same time the relay hermetically.

From WO 88/105505 a known manufacturing process of a set that constitutes a relay, being in said procedure provided in the form of a grid stamped electrical contacts of the relay and being in said injection molded procedure a box in which it looks like this integrated stamped grid. Then the frame is removed surrounding the stamped grid, and thus a plate is obtained base with integrated contacts by injection molding in the set that constitutes the relay. It fits on the motherboard a electromagnetic coil with yoke, and then the construction unit with a lid.

From US 5,309,623 a known manufacturing process of a set that constitutes a relay, having in said procedure mobile contacts in a grid stamped and being the same in said procedure attached to a armor in a surrounding injection molding operation for thus form a constructive unit. The set that constitutes the relay also features a box in which they are integrated by molding by injection electrical contacts.

The invention pursues the purpose of providing a simple manufacturing procedure for a set that constitutes a relay and a relay of simple constructive form in which they remain precisely adjusted the yoke and the contacts of each other commutation.

The purpose pursued by the invention is achieved by the method according to claim 1 and by means of the relay according to claim 7.

An advantage of the process according to the invention it is the one that consists in the fact that in a single operation of surrounding injection molding is set an exact position between the yoke and the switching contacts. The first and the second switching contact connection are also connected a to another by means of a joint part during the operation of surrounding injection molding. Thanks to that exactly established the relative positions of the first contact of switching and the second switching contact with each other. The joining part is arranged outside the assembly that constitutes the relay and is made when the molding is carried out surrounding by injection, whereby the joint part can be separated from the two switching contacts after being the surrounding injection molding operation has been carried out, and they obtain separate switching contacts. With that it is possible to achieve an exact positioning of the yoke with respect to two switching contacts, and also an exact positioning of the two switching contacts with each other.

The yoke is configured as part of a first carrier band, and the switching contacts are configured as part of a second carrier band. By means of the use of carrier bands is simple and possible economic manipulation of the components when the surrounding injection molding operation. The position of the components is previously fixed by means of bands carriers, so that a high degree of automation.

Consequently, it is not necessary to hold for separate the different components with holding devices from complex configuration to achieve the exact positioning that is necessary to perform the surrounding molding operation by injection. The essential support function is played by the carrier bands.

In addition, when the operation of surrounding injection molding is surrounded by molding by injection the second switching contact, which is also part of the second carrier band. Thanks to the configuration of the second switching contact as part of the second band carrier, it is not necessary to hold additionally when performing surrounding injection molding operation a third band carrier This offers particular advantages due to the fact that two carrier bands can be arranged on opposite sides of the set that constitutes the relay, without them being disturbed mutually. It would certainly be possible to arrange two bands carriers on the side of the set that constitutes the relay being Performed the injection molding operation, but this would pose greater demands on matters of form construction of the support and transport systems of the carrier bands, since the construction space would be reduced available.

The relay according to the invention has a Simple structure that can be economically manufactured.

They are indicated in the dependent claims additional and advantageous embodiments of the invention.

The carrier bands preferably have for example support holes by means of which the bands carriers are accurately guided.

Depending on the embodiment, it can also make a thin coverage of the yoke on the surfaces of Armor support. This adjusts a defined air gap between the yoke and the armor.

In a preferred embodiment of the method according to the invention, the second switching contact  it is arranged parallel to a second arm of the yoke and under the same. The second switching contact also protrudes up to beyond both ends of the arm, constituting one end of the second switching contact a contact surface for the connection of a contact spring and leaving the second end to the outside of the set that constitutes the relay.

In a preferred embodiment, the armature is essentially configured in the form of a rectangular plate that is supported on three sides of the plate by a spring and contact plate. The piece of spring plate is also passed over an upper side of the plate and bent around the plate to the lower side, and said piece of spring plate is preferably attached to the frame
p. ex. by riveting or welding. Starting from the lower side, a contact part extends essentially perpendicular to the orientation of the spring part and parallel to the arrangement of the reinforcement. In this way a good support is achieved in a simple and economical way between the plate of the reinforcement and the contact spring.

In an advantageous embodiment it is provided an electrical conductor that establishes an electrical connection  between the second contact connection and the contact rivet, said electrical connection being supported in the armature. Thank you to this can be done with little loss the switching of high intensity currents.

The electric conductor also has the advantage that the selection of the material of the component that constitutes the spring is no longer limited to the conductive materials of the electricity. It is clarified in more detail below the invention based on the figures. The different figures show what next:

Figs. 1A, 1B, a representation in perspective and a view from the top of a relay;

Fig. 2, a schematic overview of a relay manufacturing process;

Fig. 3, a first section of the process;

Fig. 4, a second section of the process;

Fig. 5, a third section of the process;

Figs. 6A-6D, a process of manufacture of a contact spring with reinforcement;

Fig. 7, a relay with parts removed by cut;

Fig. 8, a relay with parts removed by cut with open electrical circuit;

Fig. 9, a relay with parts removed by cut with the connection area between the contact spring and the second contact connection;

Fig. 10, a plan view of an additional embodiment of the relay;

Fig. 11, a first section of the additional embodiment;

Fig. 12, a second section of the additional embodiment;

Fig. 13, a relay with plug connections; Y

Fig. 14, a side view of the connections plug

Figs. 1A and 1B show a representation in perspective of a relay 1 and a representation from the top of the relay 1. Relay 1 essentially has a parallelepipedic shape, two connections 2 of the coil used for the electrical connection of a supply of current for a relay 1 coil. On a front side two contact connections 3, 4 protrude from relay 1. contact connections 3, 4 are used to connect two conductors that are electrically connected or disconnected between yes through the relay and according to the switching state of the relay.

Fig. 2 shows in an overview schematic a manufacturing process of relay 1. They are also represented in three lines R1, R2, R3 the production steps of Three different subsets. Through dashed lines transverse has been made for the three lines R1, R2, R3 a subdivision into fourteen production steps P1 to P14.

In a first line R1 the steps are represented of production for the manufacture of a spring armor of Contact. In a second line R2 the steps of production that are made for the manufacture of relay 1. In a third line R3 the production steps for the manufacture of the two contact connections 3, 4. An advantage essential of the manufacturing process that is represented in Fig. 2 is the one that consists in the fact that in the operation of surrounding injection molding, in which they are surrounded together by surrounding injection molding the connections of 3, 4 contact with the electromagnetic coil and yoke plate, the contact connections 3, 4 and an electromagnetic coil 13 with a plate 11 of the yoke are supported by carrier bands 5, 6.

In a first position P1 a second band Carrier 6 presents a plate 11 of the yoke. Plate 11 of the yoke it essentially has a U shape with two arms 21, 22. One part intermediate 20 joins the two arms 21, 22. The intermediate part 20 subsequently serves as a magnetic core. The second carrier band 6 and the yoke plate 11 are preferably manufactured in a process die cutting, leaving the plate 11 of the yoke configured as such so that through a distance part 23 it forms a single piece with the second carrier band 6. The spacer part 23 it is arranged parallel to the direction of the intermediate part 20. In the second production position P2 that comes to then it is done by injection molding on plate 11 of the yoke a frame 12 of the coil, being also integrated in the same the connections 2 of the coil. In a third position of P3 production that follows is represented in the third line R3 the first carrier band 5, which is configured in such a way that it forms a single piece with a first strap of contact and a second contact strap 7, 8. The first strap of contact and the second contact strip 7, 8 are arranged such that they are essentially parallel to the longitudinal direction of the first carrier band 5. The first contact strip 7 is attached to the first carrier band 5 through a first part of connection 9. The second contact strip 8 is connected to the first contact strip 7 through a second connecting part 10. The first contact strip 7 has a hole in which in a subsequent fifth production point P5 is placed a rivet of contact 19.

In the passage of the third production position P3 to the fourth production position P4 is placed in frame 12 of the coil a winding 13 of the coil whose ends are placed in connection with coil connections 2.

When passing from the fifth production position P5 to the sixth production position P6 they put each other in mounting position the first carrier band and the second band carrier 5, 6, leaving the first contact strip and the second contact strip 7, 8 under the plate 11 of the yoke. The second contact strap 8 is also arranged directly below the second arm 22 of the yoke plate 11, the second protruding contact strap 8 on both sides to beyond the ends of the second arm 22. The first contact strip 7 is preferably arranged in the area that is located between the first arm and second arm 21, 22, but under the first arm and second arm 21, 22. Instead of the form of embodiment shown, the first contact strip 7 can be also arranged on top of the first arm and the second arm 21, 22. The contact rivet 19 of the first contact strip 7 it is also arranged in front of the electromagnetic coil 13 which has been subject to surrounding injection molding. When passing from one subsequent seventh production position P7 to an octave P8 production position is made a set that constitutes a relay by a surrounding injection molding process in which the position of the plate 11 of the yoke with respect to a first contact strip and a second contact strip 7, 8 that they constitute contact connections 3, 4. They are attached by molding by injection a bottom plate and side walls 24. The plate bottom and side walls 24 are made in one piece based of plastic. The first union part and the second union part 9, 10 are arranged outside the side walls 24. It is also arranged outside the side wall 24 the spacer part 23 of the second carrier band 6. By means of the bottom plate, yoke plate 11 with coil 13 which has been object of surrounding injection molding is firmly fixed to the first contact strip and the second contact strip 7, 8 thus forming a set that constitutes a relay. Coil 13 with the frame 12 of the coil is also subjected to surrounding molding by injection thus being in the form of a block 28 of the coil.

In Fig. 2 they are represented in the first R1 line the production positions for manufacturing a set 31 that constitutes the armor with the spring. Set 31 constituting the armor with the spring is introduced into the set that constitutes the relay at the tenth production point P10 In this position, the set that constitutes the relay is already supported only by the first carrier band 5. When passing from the ninth production position to the tenth production position, the second carrier band 6 was separated from the set that It constitutes the relay.

For the sake of clarity of the vision of as a whole, the devices of transport that are necessary for the transport of the bands carriers 5, 6. For the surrounding molding operation by injection an injection molding mold is used in which Performs injection molding with plastic. Plastic is a plastic that is electrically insulating. For the manufacture of the plate 11 of the yoke a magnetically soft sheet strip is used. In the twelfth production position P12 is separated by cutting the relay 1 the first carrier band 5. In the subsequent thirteenth production position P13 closes relay 1 with a cover 17. In the subsequent fourteenth production position P14 is already made a complete relay 1.

In Fig. 3 they are represented on a larger scale the first four production positions P1 to P4 for the second line R2. The two parts can be clearly seen sides of coil frame 12 and coil connections 2 placed. After being carried out in the frame 12 of the coil the coil winding 13, the end portions 25 of the wire The coil are connected to connections 2 of the coil. The coil connections 2 are configured as pins that pass through a part of the frame 12 of the coil. Going from the third production position to fourth production position P3, P4, the lower ends of coil connections 2 they are folded thus being arranged parallel to the second carrier band 6 and in such a way that they move away from the coil 13.

Fig. 4 shows in an enlarged representation the fifth to ninth production positions P5, P9 for the second line and the third line R2, R3. In the representation of the sixth P6 production position, the first contact strip and the second contact strip 7, 8 are arranged under the plate 11 of the yoke and the second contact strip 8 protrudes on both sides to beyond the ends of the first arm 21 of the plate 11 of the yoke. The second end of the second contact strip 8 is at flush of frame 12 of the coil. In the eighth production position P8 is arranged between the first arm 21 and the second strap of contact 8 a part of the bottom plate 26, which was made by The surrounding injection molding operation. The first strap of contact 7 is also surrounded by an anterior wall 37, thus as embedded laterally in block 28 of the coil. Area of the first contact strip 7 in which the rivet is arranged of contact 19 is not circled when the operation is carried out surrounding injection molding, but it is free. further a chamber is not surrounded by injection molding of contact 27 which is disposed between a rear wall 36 and the first arm 21. They are also not covered when the surrounding injection molding operation the surfaces of the arms 21, 22 of the plate 11 of the yoke. With it is freely accessible on the contact chamber 27 the upper side of the second terminal part of the second contact strip 8.

Fig. 5 shows an enlarged representation of the tenth to thirteenth production points P10, P13 for the first line and the second line R1, R2.

In the tenth production position P10, the set that constitutes the relay presents a parallelepiped block 28 of the coil that is placed in a box consisting of two side walls 24, an anterior wall 37 and a posterior wall 36. Between the coil block 28 and the anterior wall 37 is left configured a chamber 29 of the armor that as such a camera runs laterally along the entire anterior wall 37. Between the side wall 24 and the block 28 of the coil is a spring chamber 30 is configured. The armor chamber 29 and the spring chamber 30 overlap in a corner area and They are oriented perpendicularly to each other. In chamber 29 of the armature and spring chamber 30 set 31 is placed that constitutes the armor with the spring, being introduced together from above an element 16 that constitutes the spring in the chamber 30 of the spring and an armor 15 in the chamber 29 of the armor.

In its basic form, set 31 that constitutes the armor with the spring presents an L shape that is arranged parallel to two side edges of block 28 of the coil.

Armor 15 is essentially configured in rectangular plate shape that is held in a system 32 of spring contact. The spring contact system 32 features the element 16 that constitutes a spring and is configured of such that it forms a single piece with the element 33 that constitutes the contact spring.

The element 16 that constitutes a spring it presents a contact area 39 that has been made by means of a bending down and when assembly is done 31 which constitutes the armor with the spring is embedded in the contact chamber 27 and is solidly attached to the second strap of contact 8.

Figs. 6A to 6D show three different steps of manufacture for the manufacture of assembly 31 which constitutes the armor with the spring. Fig. 6C shows the assembly 31 that constitutes the reinforcement with the spring and consists of system 32 of spring contact, which is made by punching a sheet for springs and conveniently folded. Fig. 6A shows the spring contact system 32, consisting of element 16 which constitutes a spring and is arranged essentially perpendicularly to element 33 constituting the contact spring. The element 16 constituting the spring is configured in the form of a plate narrow that will be attached to a support top plate 34. The upper support plate 34 is essentially shaped rectangular and arranged perpendicular to the direction longitudinal of the element 16 that constitutes the spring. The plate upper support 34 passes laterally to a connecting arch 35 which it is arranged essentially in the longitudinal direction of the element 16 which constitutes the spring. Junction arch 35 is configured essentially L-shaped, joining a shorter arm to the plate upper support 34. Crosswise with respect to the arm more along the arc 35 the element 33 is configured which constitutes the contact spring and is formed by bending down and arranged perpendicular to the element 16 which constitutes the spring. For the manufacture of the set that constitutes the armor with the spring, the armor 15 is inserted between the long arm of the connecting arch 35 and the plate upper support 34, as shown in Fig. 6B. TO then the upper support plate 34 is applied under pressure on the upper side of the armor 15, being fixedly attached to the armor 15 both the upper support plate 34 and the arm longer than the arc of connection 35, said union being effected p. ex. by welding or riveting. Element 33 that constitutes the contact spring is arranged parallel to the frame 15 and under it. Preferably, the contact spring 33 it has a second contact rivet 40 that is fixed to a lower side of the contact spring 33. A free end of the element 16 constituting the spring is bent down and passes to a contact area 39 that is almost ready parallel to the upper support plate 34, as is depicted in Fig. 6C. With this, element 16 that constitutes the spring has an S-shaped section in the free end, as depicted in Fig. 6D. Contact zone 39 serves for the mechanical fixation of the element 16 that constitutes the spring to the second contact strip 8 in the contact chamber 27.

Fig. 7 shows a representation of the relay 1 from a front side, the front wall 37 being partially open. In this view it can be clearly seen how the first contact strip and the second contact strip 7, 8 are embedded in the plate bottom 26. At least in the area of the contact rivet 19, the upper side of the first contact strip 7 is not covered by the surrounding injection molding material. Nor have the surfaces of the first arm and second arm 21, 22 been covered with surrounding injection molding material when the surrounding injection molding operation is carried out. The armature 15 is arranged transversely with respect to the first arm and the second arm 21, 22 and preferably in the area of the upper support plate 34 rests on the first arm 21. Fig. 7 shows the relay in a closed position, wherein the armature 15 also rests on the second arm 22, thereby establishing an electrical connection between the first contact strip 7 and the element 33 constituting the contact spring. The second contact rivet 40 is further applied to the first contact rivet 19. The element 16 constituting the spring is disposed between a side wall 24 and the block 28 of the
coil.

In the closed position of the armor 14, as shown in Fig. 7, an electrical connection is established between the first contact connection and the second connection of contact 3, 4, since the first contact strip 7 is electrically connected to the second contact strip 8 through the element 33 constituting the contact spring and of element 16 which constitutes the spring.

Fig. 8 shows relay 1 in a position of switching in which the circuit is open, the second being contact rivet 40 separated from the first contact rivet 19. In this position, the armor 15 remains supported on the first arm 21, but is away from the second arm 22. Armor 15 is held by spring force by contact system 32 by spring, corresponding to the resting position of the armor 15 to the opening position, as shown in Fig. 8. Only when electric current is applied to the coil electromagnetic 13 an electromagnetic field is produced that attracts the armor 15 bringing it to the closed position according to Fig. 7.

Fig. 9 shows a view of relay 1 from the back side, being partially removed by cutting the wall rear 36 of relay 1. Element 16 constituting the spring is applied with the contact zone 39 to the second strap of contact 8 and fixed and mechanically attached to the contact strip 8. The joining is done for example by means of a welding layer or Indirect welding Armor 15 is thus sustained. elastically In addition there is an electrical connection between the second contact rivet 40 and the second contact strip 8.

Thanks to the chosen embodiment, the element 16 constituting the spring can be configured from so that it is relatively long, which achieves a great elasticity. In addition, thanks to the perpendicular arrangement of the element 16 constituting the spring with respect to the plane of tilting of the armor 15, when the passage of the opening position to the closing position of the armor 15 a torsion of the element 16 constituting the spring which as such torsion occurs perpendicular to the longitudinal axis can be used for the elastic support of the armor 15. This also contributes to the desired spring elasticity of the Armor bra 15. Also, thanks to the lateral arrangement of the armor 15, which in an extreme area is fixedly attached to the element 16 constituting the spring, an advantageous can be achieved switching situation. Due to the great length of the armor 15 available for the armature's turn movement 15, when an armature tilt 15 takes place through a small angular travel is a large linear travel in the area of the second arm 22. With this, for the movement of the armor 15 to move from the open position to the position of closure is necessary only a small twist of element 16 which constitutes the spring, and therefore a scarce request for element 16 that constitutes the spring.

Fig. 10 shows an additional and preferred embodiment of relay 1 in which an electric conductor 41, which is preferably a conductive cord, is connected electrically with one end through the contact zone 39 with the second contact 8 and with a second end with the second contact rivet 40 of the armature 15. The electrical conductor 41 it is also inserted in the chamber 30 of the spring and in the chamber 29 of the armor. In chamber 29 of the armor the driver electrical 41 is passed between armor 15 and block 28 of the coil and down by armor 15 and is connected electrically with the second contact rivet 40.

Fig. 11 shows a section B-B of the relay of Fig. 10. It can be seen here clearly how the electrical conductor 41 is passed, as well as the electrical connection with the second contact rivet 40, which at through an element 33 constituting the contact spring is held in armor 15.

Fig. 12 shows a section A-A practiced along chamber 30 of the spring of Fig. 10. Here you can clearly see how it looks established the electrical contact of the electrical conductor 41 in the contact zone 39, and with it the electrical connection between the second contact 8 and the electrical conductor 41. According to this form of embodiment, between the electrical conductor 41 and the second contact 8 the contact zone 39 of the element 16 is arranged which It constitutes the spring. Depending on the embodiment, you can also the electrical conductor 41 be directly in electrical connection with the second contact 8. This embodiment is chosen when, for example, as material of element 16 which constitutes the Spring is used a material that is not good electrical conductor, as p. ex. spring steel. The use of steel for Springs can be advantageous to achieve improved properties spring elasticity of the armor support 15.

The use of the electrical conductor 41 allows a conduction of currents of more than 40 amps with relatively little loss In addition, due to the electric conductor 41 it is no longer necessary to use a material that is a good conductor electric for the element 16 that constitutes the spring.

Fig. 13 shows a side view of a additional embodiment of a relay that fits in essence to the embodiments that have been described so far, if either the first contact connection and the second connection of Contact 3, 4 are configured in the form of plug connections. The plug connections have the peculiarity that the end of contact connections 3, 4 narrows progressively and is therefore suitable for plugging in the relay 1 on corresponding electrical plug contacts by example of a printed circuit board. In this form of embodiment the connections 2 of the coil are arranged in the same side as the first contact connection and the second contact connection 3, 4 and also present in the extreme zone a chamfered shape. The chamfered shape is preferably given two lateral surfaces 42, 43 that are arranged in such a way that run in inclination thus giving rise to the formation of a sharp end.

Claims (11)

1. Method of manufacturing an assembly that constitutes a relay with at least a first switching contact and a second switching contact (7, 8) and a yoke (11) with an electromagnetic coil (13); characterized in that the first switching contact and the second switching contact (7, 8) are connected to a first carrier band (5) and that the yoke (11) is connected to a second carrier band (6) , that the first carrier band (5) is connected to several first and second switching contacts (7, 8), that the second carrier band (6) is linked to several yokes (11), that the first carrier band and the second carrier band (5, 6) are brought to a mounting position, that the first contact and the second contact (7, 8) are mutually joined through a joint part (10) when the operation is performed surrounding injection molding, and that the joint part (10) is arranged outside the assembly constituting the relay, that the switching contacts (7, 8) and the yoke (11) are fixedly connected to each other by means of a surrounding injection molding operation, and that after the operation Injection molding, the first switching contact and the second switching contact (7, 8) and the yoke (11) are separated from the carrier bands (5, 6). 2. Method according to claim 1, characterized in that the surface portions of arms (21, 22) of the yoke (11) are kept free of surrounding injection molding material when the surrounding injection molding operation is performed. Method according to one of claims 1 and 2, characterized in that the first switching contact (7) has a contact surface and a first contact connection (3), and that the second switching contact ( 8) has a second contact connection (4) and a contact surface. 4. Method according to one of claims 1 to 3, characterized in that the second switching contact (8) is arranged parallel to a second arm (22) of the yoke (11) and below it, the second contact protruding switching (8) from both sides to beyond the second arm (22), one end of the second switching contact presenting the second contact connection (4) and the second end presenting the contact surface for establishing contact with a set (31) that constitutes the reinforcement with the spring. 5. Method according to claim 4, characterized in that an armature (15) with a contact (40) and a spring (38) of the armature is inserted into the assembly constituting the relay, of which the armor ( 15) it is arranged with one end on top of a second arm (22) of the yoke (11), that the spring (38) of the armature is applied with a contact area (38) to the contact surface of the second contact of switching (8), and that the spring (38) of the armature is with the contact area (38) fixedly attached to the contact surface of the second switching contact (8), the armature (15) being arranged with its second end on top of the first arm (21) of the yoke (11), and that the contact (40) is assigned to a contact surface of the first switching contact (7). Method according to claim 5, characterized in that an electrical conductor (41) is electrically connected by a first end with the contact surface of the second switching contact (8), that the second end of the electrical conductor ( 41) is electrically connected to the contact (40) of the armature (15), and that the conductor (41) is introduced into a corresponding relay chamber (1) above the spring (38) of the armature and above the armor (15). 7. Relay that has been manufactured according to one of the procedures of claims 1 to 6. Relay according to claim 7, characterized in that the electromagnetic coil (13) is arranged in a block (28) of the coil, between a front wall (37) and the block (28) of the coil a chamber (29) of the armature is configured, that between a side wall (24) and the block (28) of the coil a chamber (30) of the spring is configured, of which the armature chamber and the chamber of the spring (29, 30) are connected to each other, and that an assembly (31) constituting the reinforcement with the spring is inserted into the armature chamber and the spring chamber (29, 30). 9. Relay according to claim 8, characterized in that a connection contact (8) is arranged under the spring chamber (30), that an arm (22) is arranged above the connection contact (8) of the yoke (11), that the connection contact (8) protrudes with both ends to beyond the ends of the arm (22), that one end protrudes from the relay as a connection, and that the other end has a surface of contact to which the assembly constituting the spring is fixedly attached. 10. Relay according to one of claims 8 or 9, characterized in that an electric conductor (41) is provided which is connected between a second switching contact (8) and a contact (40) that is fixedly connected to the armor (15). 11. Relay according to claim 10, characterized in that the electrical conductor (41) is connected to the contact surface of the connection contact (8), and that the electrical conductor (41) is arranged in the chamber ( 30) of the spring and in the chamber (29) of the reinforcement.