CH309703A

CH309703A - Method of connecting the thin wire of an electrical coil to contact parts.

Info

Publication number: CH309703A
Authority: CH
Inventors: Horlogerie Lip S A D
Original assignee: Lip Horlogerie
Priority date: 1952-05-23
Filing date: 1953-05-22
Publication date: 1955-09-15

Description

Procede de connexion du fil fin dun bobinage electrique ä des pieces de contact. La presente invention a ponr objet un proeede de eonnexion du fil fin dun bobinage eleetrique ä des pieces de contact. Method of connecting the thin wire of an electrical coil to contact parts. The present invention relates to a method for connecting the fine wire of an electrical winding to contact parts.

0n saut que lorsque les bobines electriques sont faites en f'il tres fin an a soin h.abi- tuellement d'utiliser pour faire 1'entrk et la sortie du bobinage un fil plus gros resistant mieux aux efforts mecaniques et aux manipu- Tations. However, when the electric coils are made of very fine wire, care is usually taken to use a thicker wire for the input and output of the winding which is more resistant to mechanical stress and handling. .

La liaison entre 1e fil fin du bobinage et 1e fil plus gros d'entree et de sortie est assuree par soiadure, maus la soudure du fil fin sur un fil plus gros est quelquefois diffi- cile ä faire et toujours coüteuse. The connection between the fine wire of the winding and the coarser input and output wire is ensured by solder, but the soldering of the fine wire to a coarser wire is sometimes difficult to make and always expensive.

L'invention a pour but de remedier ä cet inconvenient. The object of the invention is to remedy this drawback.

Dans 1e dessin annexe, donne ä titre d'exemple, les fig.1 et 2 representent des bobinages ä fil fin connu et la fug. 3 represente un bobina.ge dont 1e fil fin a<I>kg</I> connecte ä des pieces de contact par 1e procede selon 1'invention. In the accompanying drawing, given by way of example, Figs. 1 and 2 show known fine wire windings and Fig. 3 represents a bobbin whose first thin wire a<I>kg</I> connects to contact pieces by the method according to the invention.

0n saut qu'habituellement an soude aux extremites 1 des Pils fies du bobinage 2 des fils plus gros 3 qui peuvent etre relies direete- ment au Teste du circuit comme 1e montre la fig.1 ou bien etre relie audit eircuit comme dann la fug. 2 par 1'intermediaire de pieces conductrices de forme quelconque 4. We usually jump to the ends 1 of the Pils of the winding 2 of the larger wires 3 which can be connected directly to the test of the circuit as shown in FIG. 1 or else be connected to said circuit as in the fug. 2 through conductive parts of any shape 4.

Au contraire, suivant 1'exemple de mise en Oeuvre du procede selon 1'invention illustre ä 1a. fug. 3, les extremites du fil 1 du bobinage 2 sont denudees de leur couche isolante et recouv ertes d'un vernis 5 conducteur de 1'elec- tricite. C'est sur ce vernis conducteur 5 que viennent s'appuyer les pieces con duetrices 4 qui sont alors faeilement reliees au Teste du circuit. On the contrary, following the example of implementation of the process according to the invention illustrated in 1a. fug. 3, the ends of wire 1 of winding 2 are stripped of their insulating layer and covered with a varnish 5 that conducts electricity. It is on this conductive varnish 5 that the conductive parts 4 are based, which are then easily connected to the circuit test.

Le but de ce vernis condueteur est de pro teger contre la rm.pture et 1'usLUe les extre- mit6s 1 fragiles du fil fin constituant 1e bobi- riage 2 et d'aua nenter la surface de contact pour assurer 1e passage du eourant electrique entre ces extremites 1 et les pieces conduc- triees 4. The purpose of this conductive varnish is to protect the fragile ends 1 of the fine wire constituting the winding 2 against damage and wear and to protect the contact surface to ensure the passage of electric current. between these ends 1 and the conducted parts 4.

Si 1e vernis est sans action sur 1'isolant du fil, il peut venir en contaet avec les spires du bobinage 2 au point 1e plus convenable pour appuyer les pikes eonductrices 4. If the varnish has no action on the insulation of the wire, it may come into contact with the turns of the winding 2 at the most suitable point for supporting the conductor pins 4.

Ce vernis conducteur peut etre constitue par exemple par une poudre metallique telle que de 1a. poudre d'aluminium, de cuivre ou d'argent ou par une poudre d'un corps con- dueteur tel que 1e graphite en suspension dann un vernis siceatif. This conductive varnish can be constituted for example by a metal powder such as 1a. aluminum, copper or silver powder or by a powder of a conductive substance such as graphite suspended in a siceative varnish.

Claims

CLAIM: Method for connecting the fine wire of an electrical winding to cost pins, characterized in that its bare end. the ends of the fine wire of the winding, which are joined each to the corresponding contact pin by interposing an electrically conductive varnish for the purpose of increasing the contact surface between the contact pin and 1 'extre-

moth wire and especially to protect said ends of the wire against breakage and wear. SUB-It_EVENDICATIONS 1. Proeede according to claim, carae teris6 in e e that Fon is used as vereis eondueteur i.ne suspension of LZne aluminum powder in a drying vereis.

2. Process according to claim, earae teris6 in that Fon is used as vereis

conductor of a suspension of an inch of e ttivre Jans a sieeative vereis.

3. Proceeding according to the claim, since it is terminated in that one is seated as vereis conducted in a suspension, one of silver powder in a siceative vereis.

4. Process according to the claim, characterized in that Fon uses as condenser glass a suspension of graphite in a seat glass.