DE2540695A1 - MINIATURIZED ADHESIVE POINT - Google Patents

Description

Patent attorney

Stuttgart

INTERNATIONAL STANDARD ELECTRIC CORPORATION, New York

JBRaso-EMAJammes k-2

Miniaturized adhesive coupling point

The invention relates to a miniaturized adhesive coupling point according to the preamble of the claims.

In the main application P 23 03 85 ^ is a miniaturized Adhesive coupling point described, housed in a closed housing magnetically shielded is. This adhesive coupling point is created by current pulses controlled and is provided with magnetic adhesion.

Inside the housing, the adhesive coupling point consists of two coil arrangements, side by side next to one another lie and each consist of coaxial coils, furthermore of an even number of contact tongues, each made of an elastic half-tongue made of electrically conductive, non-magnetic material, the is firmly clamped at one of its two ends, as well as from an elastic half-tongue made of electrically conductive, remanent magnetic material. The latter is at one end with an electrical contact surface Mistake; its other end is attached to the free end of the other elastic half-tongue, so that both Half tongues are connected to each other.

September 10, 1975, Bg / Ku

J.B.tfRaso 4-2

The contact tongues are side by side and the interior space is longitudinal to one of the two coil arrangements arranged penetrating so that each contact tongue is assigned to it, in the interior of the other coil arrangement touches lying contact tongue when the electromagnetic fields generated by the coils are effective will.

The object of the present invention is to improve the performance to increase the adhesive coupling point and to achieve that it can be mass-produced can, whereby the spread of its technical characteristics remains limited to a minimum.

The object is achieved according to the invention by the characterizing Features of the claims solved.

Further details of the invention can be taken from the following description, which relates to an exemplary embodiment of the invention, which is illustrated in the drawings.

In the drawings show:

Fig. 1 is a view of the adhesive coupling point according to the invention in its housing, the upper part is removed;

Fig. 2 shows an embodiment used in practice a magnetic half-tongue;

Fig. 3 is an exploded view of the parts of one in the Practice used adhesive coupling point according to the invention.

609815/0877

J.B. Raso 4-2

The adhesive coupling point in Fig. 1 has a common one Housing 1 made of non-permanent magnetic material, with the upper part removed.

The housing contains the contact tongues, respectively an elastic half-tongue 2, e.g. 2a and 2b, and a magnetic half-tongue 3j e.g. 3a and 3b, exist. The contact tongues are with their elastic half tongues on an insulating body 4 on the base plate of the housing 1 attached. The housing 1 also contains the coil assemblies 5 for actuating the Contacts.

It has been shown that when sliding the contacts the curved ends of the magnetic half-tongues 3a. and 3b strongly attracting each other and swinging the cause ends of the magnetic half-tongues attached to the elastic half-tongues, which in turn for a certain time causes a drum effect on the contact surfaces. This drum effect, the contact impact in a common relay, can cause interfering signals in the circuit until Mechanical unit formed by the contact spring has reached a stable state.

According to the invention, this disadvantage is avoided by long ribs on the inside of the housing, such as 6a and 6b, through x \ relche a path with the least magnetic Resistance to the magnetic flux is formed by the magnetic half-tongues 3a and 3b is generated when the contact is closed. The path is through the magnetic half-tongues 3a and 3b, which are on their curved ends are connected when the contact is closed, through the part of the housing between the

■ 8 09815/0877

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JBRaso h-

Ribs 6a and 6b as well as through the air gaps between the rib 6a and the half tongue 3a and between the Rib 6b and the half-tongue 3b is formed.

Any movement that could lead to an enlargement of one of the air gaps defined above becomes instantaneous counteracted, and the ribs 6a and 6b form virtual magnetic axes of rotation, which the lateral movement of the ends of the contacts on which the half-tongues are attached to one another, and thereby also the drum effect between the contact surfaces limit the bent ends of these half-tongues.

It is known that remanent magnetic material is a has poor deformability, making it difficult to bend the contacts. You can also go through Soldering these materials when making the contacts changes the magnetic characteristics.

According to the invention, there are magnetic half-tongues of three parts, as shown in FIG. The middle part 7 of each half-tongue consists of remanent magnetic Material with defined magnetic characteristics, ends close on both sides 8 and 9 made of non-permanent magnetic material. These Ends allow the contact surfaces to be easily formed, with contamination of the the contact surface forming additional metal is avoided by substances in the magnetic material, and making the application of this additional metal easier and its mechanical resistance

609815/0877

J.B. Raso 4-2

is improved.

By using non-permanent magnetic material for the end 9 of the half-tongues there is an accidental closing of the contacts as a result of the magnetization one half tongue prevented by the other. Even if a temporary magnetization of the non-remanent Zone of one half tongue exists through another, this magnetization can only occur during the duration of the generating it Failure process exist, but the contact cannot be closed.

Exact dimensioning and design of the middle part 7 ensure good homogeneity of the remanent Magnetization and improved operation of the control coils.

For the mass production of an adhesive coupling point of this type, it is necessary to increase the number of manufacturing steps to keep a minimum and to simplify the production as much as possible.

According to the invention, FIG. 3 shows how the coils of the adhesive coupling point are composed of a part such as part 10, where the coils are cast in a material which, after hardening very little gas separates, thus avoiding contamination within the housing after this is sealed.

609815/0877

J.B. Raso 4-2

The part 10 is designed so that the coil connections with connecting pins 12 in the base plate 13 of the adhesive coupling point are connected, and it is provided with two openings 11a and 11b through which the contact tongues be inserted into the part 10 as shown in Fig. 1 and aligned therein.

The contact tongues are carried by electrically conductive supports 15 such as 15al to 15b2, some of which are sunk into an insulating part 14, which is also made of a material with low gas separation exists so that it can be sealed within the housing.

The supports 15 are mounted in the insulating part 14 so as to to enable the connection to the pins in the base plate 13.

The part 10 with the coils, the insulating part 14, the base plate 13 and the housing 16 are manufactured individually and then assembled by simply plugging them together before the housing is soldered to the base plate will.

3 claims

1 sheet. drawings

8Q9815 / 0877

Claims (1)

J.B.Raso i | -2 claims 1.) By current pulses controllable, bistable, miniaturized adhesive coupling point according to the main application P 23 03 854 with a closed housing for coordinate switches in which the adhesive coupling point within the closed housing has at least two coil arrangements, which are side by side and each of at least two coaxial coils exist, in which the coupling point still has "2m" contact tongues, each of which consists of an elastic, non-magnetic half-tongue, which is firmly clamped at one end, and a remant magnetic half-tongue, which is provided at one end with a contact surface while you the other end is attached to the free end of the elastic half-tongue so that the two half-tongues are side by side, in which the "2m" contact tongues are arranged side by side in groups of "m" contact tongues so that they penetrate the interior of one of the two coil assemblies longitudinally , that each contact tongue touches the contact tongue assigned to it, located in the interior of the other coil arrangement, when the electromagnetic fields generated by the coils are effective, characterized in that ribs (6a, 6t? ) are attached, which are located opposite the ends of the contact tongues on which the elastic, non-magnetic half-tongues (2a, 2b =) and the magnetic half-tongues (3a, 3b) are attached to one another. IO.9.1975, Bg / Ku 609815/0877 J.B. Raso 4-2 By current impulses controllable, bistable, miniaturized adhesive coupling point after the main heat report P 23 03 854, with a closed housing for Coordinate switch in which the adhesive coupling point within the closed housing has at least two coil arrangements possesses ,, which lie side by side next to each other and each consists of at least two coaxial coils exist, in which the adhesive coupling point still has "2m" contact tongues, each made of an elastic non-magnetic half-tongue which is firmly clamped at one end, and a remanent magnetic half-tongue exist, which is provided at one end with a contact surface, while at the other end the free end of the elastic half-tongue is attached so that the two half-tongues side by side lie, in which the "2m" contact tongues are still side by side in groups of "m" contact tongues Inner space each of one of the two coil assemblies are arranged to penetrate longitudinally so that each contact tongue the contact tongue assigned to it, located in the interior of the other coil arrangement, touches when the through the coils generated electromagnetic fields are effective, characterized in that the magnetic Half tongues (3a, 3b) each consist of three parts in the longitudinal direction, a middle part (7) of remanent magnetic Material and two end parts (8, 9) made of non-permanent magnetic material that one end (8) is used for fastening each to the elastic, non-magnetic half-tongue (2a, 2b), and the other End (9) carries an electrically highly conductive metal for the contact surface. SQ981S / Q877 J.B. Raso 4-2 Controllable, bistable, miniaturized by current pulses Adhesive coupling point according to the main application P 23 03 854 with a closed housing for coordinate switch, where the adhesive coupling point is within of the enclosed housing has at least two coil assemblies, the side by side side by side and each consist of at least two coaxial coils, in which the adhesive coupling point continues "2m" has contact tongues, each made of an elastic, non-magnetic half-tongue, which is firmly clamped at one end, and a remanent magnetic There are half-tongue, which is provided at one end with a contact surface, while the other End is attached to the free end of the elastic half-tongue that the two half-tongues side by side lie, in which the "2m" contact tongues continue to be side by side in groups of "m" contact tongues the interior of each of the two coil arrangements are arranged to penetrate longitudinally in such a way that that each contact tongue is assigned to it, in the interior the other coil arrangement lying contact tongue touches when the electromagnetic generated by the coils Fields are effective, characterized in that it contains a first plug-in part (10) which from the coil arrangement and its There is plug connections, and that it contains a second plug-in part, which consists of the contact tongues and whose conductive supports (15) are inserted into an insulating part (14) with very low gas separation are. 609815 / Ö877