FI103537B - Insulating coating penetrating wound connector - Google Patents

Description

103537

Insulating coating penetrating wound connector.

The invention relates to a wound connector penetrating an insulating coating for connecting an electric wire in an electrical cable such as a winding wire 5 in a choke, the connector including strip-shaped connector portions on different sides of the connector.

EP-121224 discloses a wound connector in which the strip-like spring arms on different sides of the wound are transverse to each other for improved contact safety. In this known connector, the spring tabs are relatively long and can easily move in the direction of their plane, whereby the gap size may change. This in turn imposes certain requirements on the direction of the yarn and the movements 15 when the yarn is introduced into the gap.

It is an object of the invention to provide an improved wound connector in which the wire can be easily applied to the wound while providing secure contact over a large surface area 20 and with an easily selectable contact force. The connector of the invention also allows a greater variation in the thickness range of the wire to be joined.

. This object of the invention is achieved on the basis of the features set forth in the appended claim 1. The dependent claims set forth features of a preferred embodiment of the invention.

• · · • · • · ···

In the following, the three embodiments of the invention will be described in greater detail with reference to the accompanying drawings, in which:. Figure 1 is a side view of a wound connector according to a first embodiment of the invention; Figure 2 shows the same wound connector seen from above; • · · · • · · ti *. Figure 3 illustrates a second embodiment of the invention: [side view of a wound connector; Fig. 4 is a top view of the wound connector of Fig. 3; Figure 5 is a side view of a wound connector according to a third embodiment of the invention, and Figure 6 is a top view of the wound connector of Figure 5.

In the case of Fig. 1, the connector includes a single connector slot or junction wound 1 delimited by strip-like connector portions 2. These strip-shaped connector portions 2 of the same sheet material as the connector 3 define a V-groove with an open slot forming the connector wound 1. The slit or wound 1 is limited by the sharp edge edges of the strip-like connector portions 2 which cut through the insulating layer of the wire to be joined and the sides of the edges form a large contact surface. The strip-like connector portions 2 are bent to a desired V-angle at positions 4 and held in a V-groove-centered position by means of arcuate connector portions 5 that engage the connector portions 2 together. The elastic force of the coupling members 5 resists wound 1 expansion. The contact force can be constructed by dimensioning the U-shape of the connector parts 5. The shape of the connector part 5 may differ significantly from the U-trough shape shown. It is essential that the tapered or arcuate shape provides the desired elastic compression force on the wound.

..li 'In the case shown, the connector strips 2 are bent out: ***: from the plane of the connector 3, but they can also be located in the plane of the connector * * * with the sides of the trough 5 bent ♦ ♦ 30 to form an angle with the other plate.

• ♦ ·. , The connector portion 5 and the wound 1 are extensions in the longitudinal direction of the wound. In this case, the connector can be made of a single sheet • · · *. * * Strip, while wound 1 is freely accessible from both sides of the strip, which substantially facilitates ···. ti automatic thread application to wound 1. The U-shaped connector portion 5 may extend from one end of the connector to or greater than the center width of its * * ·:. * Width and wound 1 '· / · *: extends from the opposite edge of the connector to its center region 40.

3, 103537

The embodiment of Figs. 3 and 4 differs from that described above only in that the same connector 3 has two opposed wounds 1 with an arcuate connector portion 5 between them.

5

In the case of Figures 5 and 6, there are two parallel connection wounds 1 and two arcuate connector parts 5 on the same edge of the connector 3, which flexibly connect the strip-like connector parts 2 on different sides of the connection wounds 1. parallel wound 1.

These multiple connection wounds 1 of the same connector 3 can be used to either connect one thread with two contacts or to connect two different threads. The V grooves between the strip portions 2 can be utilized to guide the thread to wound 1. The sides of the V groove may be planar or curved surfaces.

20

The connector structure shown may be made of a continuous sheet material. At wounds 1, cuts of sufficient width to cut the edges of the wounds 1 close to one another after bending the U-arms 5 are cut.

In the illustrated case, the connector includes a connector tab 7 made of the same sheet material to receive the wire end between the tab 7 and the connector member 6. The connector portion 6 may be the same or different pieces of connector plate 1j '; 30, while the tongue 7 at its base portion is connected to the connector strip 3. Such connector parts 6, 7 are generally known per se and used in connection with similar connectors.

35 The wounds of the wound connector 1 are open at the end so that the wire can be introduced sideways, i.e. in its transverse movement, into the wound. In the case shown, the width of wounds 1 is constant over the entire length of the wound. Naturally, the wound may also be tapered 40 in its longitudinal direction. A wound of constant width is advantageous in that it ensures that the wound edges are cut to a constant depth regardless of how deep the wound is inserted. Adequate contact force is always ensured by the spring force of the U-arc 5.

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Claims (7)

5, 103537 An insulating coating-permeable wound connector for connecting an electric wire in an electrical instrument such as a winding wire in a choke, the strip including strip-shaped connector portions (2) on different sides of the wound (1), characterized in that the strip-shaped connector ) forming an open slot delimited by the sharp 10 peripheral edges of the strip-like connector portions (2), and that the strip-shaped connector portions (2) are held in said V-groove mutual position by an arcuate connecting portion (5) 1) the vast majority. 15 A wound connector according to claim 1, characterized in that the arcuate connector part (5) and the joint wound (1) extend in the longitudinal direction of the joint wound. The wound connector according to claim 2, characterized in that the arcuate connector part (5) extends from the other edge of the connector to or above the middle of the connector width and the connector wound (1) extends against the connector. from the edge of the stove to or near the center of the connector '1 25'. A wound connector according to any one of claims 1 to 3, characterized in that the same connector has two parallel V-strip joint wounds (1) and two arcuate • · 30 joint parts (5), respectively, which flexibly connect the joint wounds (1). strip-shaped connector parts on different sides (2). A wound connector according to any one of claims 1 to 4, characterized in that there are two opposing wires in the same connector. a wound opening (1) opening in all directions, between which is mentioned an arcuate connector part (5). A wound connector according to any one of claims 1 to 5, characterized in that the strip-like connector parts (2) and the curved connector parts (5) connecting them 103537 consist of a continuous sheet material. Wound connector according to one of Claims 1 to 6, characterized in that the connector comprises a wire end receiving connector (6, 7) made of the same sheet material and having a tongue (7) of the same sheet material as the wound connector. · • • • · · i i i i i i «« «« «« «« « 103537