JP3227153U - Cable terminal component - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cable terminal component member capable of coping with a larger cable diameter and at the same time more highly satisfying mechanical requirements for stress relief and twist. A cable for electrical connection of a cable in a cable terminal connector in the form of a sleeve-shaped clamp cage 2 with a plurality of fins 5 arranged at the end provided for insertion of the cable. A terminal component, the fin 5 having fin walls 8, 8 ′ facing each other and parallel and deviating from the radial direction, the fin walls 8, 8 ′ being at least under the action of a radial force. Change mutual position. Here, the fin 5 has a first fin portion 6 at the fixed end of the fin 5 and a second fin portion 7 at the free end following the fixed end of the fin 5, The fin portion 7 has a larger inner diameter and outer diameter than the first fin portion 6. The fin width of the outer surface 10 is larger than the fin width of the fin inner surface 11. [Selection diagram] Figure 2

Description

The present invention is a cable terminal component for a cable terminal connector in the form of a sleeve-like clamp cage with a plurality of fins arranged at the ends provided for insertion of cables, the fins comprising: The invention relates to a cable terminal component, which has mutually parallel, parallel and radially deviating fin walls, the fin walls changing at least their mutual position under the action of a radial force.

Such cable terminal components are known in connection with cable terminal connectors. For example, in this regard, DE 10 201 0017 265 A1 or EP 1710886 A1 may be mentioned. The sleeve-shaped clamp body cooperates with the cap nut and is pressed onto the outer jacket of the cable. When screwing in the cable terminal connector, the cap nut clamps the fin against the cable under the action of a corresponding force, which ensures a sufficient stress relief. In this case, the limited inner diameter of the cap nut is of decisive importance, since it must be small enough to allow the required cable pressing pressure to be created in the assembled state. Also, the limited diameter of the cap nut should not be less than the maximum diameter of the cable. Thus, in prior art arrangements, the maximum cable diameter to be accommodated is limited by that measure.

The problem underlying the invention is therefore to propose a means by means of which a cap nut and a clamp cage can reliably handle larger cable diameters in terms of stress relief and twisting, in the same terminal connector dimensions.

The above problem is solved according to the invention by a cable terminal component having the features of claim 1. Further advantageous configurations result from the respective dependent claims.

According to the invention, the fin has a first fin portion at the fixed end of the fin and a second fin portion at the free end that follows the fixed end of the fin, and the second fin portion is , Has a larger inner diameter and outer diameter than the first fin portion. The fins themselves have a limited diameter set by the cap nut, so that as the cable diameter increases, the cable pressing pressure decreases, so that at the same time it is no longer possible to meet the mechanical requirements of increasing stress relief and twisting. Can not. However, the configuration of the present invention allows the maximum diameter of the cable, which is uniquely set by the limited diameter of the cap nut, to be increased, which allows adjustment for larger cable diameters. That is, a cable having a larger diameter can be inserted into the clamp cage as compared with other clamp cages having the same structural dimensions. This increases the scale for the limited diameter of the adapter to the maximum diameter of the cable and the additional air gap. The fins of the clamp cage are radially outwardly enlarged so as to be able to compensate for the reduced cable pressing pressure due to the limited diameter increase of the adapter. In this case, such measures are limited in diameter by the thread of the cap nut on the one hand, and on the other hand by mechanical failure, the stress center distance occurring in the region of the second part of the circumference of the fin is Is not rotated, and is limited so that it has only the size to be applied to the adjacent fin in the rotation direction set by the cap nut. However, due to the increased outer diameter of the second part, a sufficient cable pressing force can be generated via the cap nut, which itself has a limited diameter. The dimensional ratio of the first fin portion to the second fin portion is obtained from the structural setting of the structural dimensions of each cable terminal connector type.

With this arrangement, a cap nut with an equal diameter, which is limited with respect to the basic maximum cable strength, can be connected to a cable having a larger diameter than the conventional clamp cage during corresponding adjustment. Conventional clamp cages otherwise do not allow sufficient pressing force.

In order to reduce the high stress in the fin and further reduce the clamp diameter of the clamp cage to be installed at the same time, the clamp diameter becomes smaller as the press pressure becomes higher. A slope is provided on the side. This means that the fin width of the outer surface of the fin is greater than the fin width of the inner surface, so that the mutually facing fin walls have a certain angle with respect to the longitudinal axis of the sleeve-like clamp cage on at least one side. means. Fin walls having a slope or a predetermined angle may be provided on one or both sides of the fin. According to a particularly preferred embodiment, the fin walls on the side pointing in the direction of rotation are provided at an angle to the longitudinal axis of the clamp cage. By virtue of this measure, the clamp diameter here is reduced even further compared to the clamp diameter without slope.

The angle by which the fin walls are inclined with respect to the longitudinal axis is 1° to 20°, preferably 3° to 5°. In this case, the angle is advantageously determined from the length and width of the fin and the clamp diameter formed by the free end of the fin and is mechanically sufficiently stable at the free end forming the clamp diameter of the fin. Selected to obtain the remaining fin width. This is because the angle is inclined with respect to one or both fin sidewalls, depending on the connector dimensions and the cable connected to the connector, a mechanically stable fin end is obtained at the free end. Means that the scale can be changed.

Therefore, the above-described configuration makes it possible to provide a cable with a larger diameter in the corresponding adjustment and at the same time to meet the increasing mechanical requirements for stress relief and twisting.

The features and feature combinations mentioned in the above description and the features and feature combinations mentioned in the following description of the drawings and/or the features and feature combinations shown only in the drawings are not only the respectively indicated combinations, It can be used in other combinations or alone. In order to carry out the invention, not all the features of claim 1 need to be realized, and individual features of the independent claims can be replaced by other disclosed features or feature combinations. All of the features and/or advantages obtained from the utility model registration claims, the detailed description of the invention or the drawings as well as the structural details, spatial arrangements and method steps can be subject to the invention either alone or in various combinations. Note that, in the drawings, the same or similar reference numerals are given to the same or similar elements. The figure shows the following:

FIG. 6 is an exploded view of a cable terminal connector having a cap nut that cooperates with the cable terminal component for attachment to the cable terminal component and cable terminal connector portion. 1 is a perspective view showing a clamp cage according to the present invention. FIG. 3 is a plan view of the clamp cage of FIG. 2. FIG. 6 is an enlarged sectional view showing a fin having an angle of the side wall surface of FIG. 5A. FIG. 6 shows a clamp cage (A of FIG. 5) and two partial views of a second fin portion (B of FIG. 5) and a first fin portion (C of FIG. 5).

FIG. 1 shows a cable terminal connector with a cap nut 1 having a thread for connection with a cable terminal connector portion 15. The cap nut 1 encloses a cable terminal member in the form of a clamp cage 2 in such a way that it grips a cable terminal member, whereby the electrical cable located inside is known when screwed onto the cable-side end of the cable terminal connector part 15. It is clamped by the method.

FIG. 2 shows a sleeve-shaped clamp cage 2 with a guide region 3, which allows the clamp cage 2 to be located in the cable terminal connector part 15 and, if necessary, the cable terminal connector part. Connected to another component for 15. Connected to the guide area 3 is a fin area 4 into which a cable, not shown, is introduced. The fin region 4 has a plurality of fins 5 having voids 9 therebetween and between the fin outer surface 10 and the fin inner surface 11. Each fin 5 has a first fin portion 6 provided at the fixed end facing the guide region 3. A second fin portion 7 is provided in contact therewith, the second fin portion 7 is enlarged in the radial direction, and the outer diameter and the inner diameter thereof are the outer diameter and the inner diameter of the first fin portion 6. Greater than Each fin has a fin side wall 8 and a fin side wall 8 ′ facing the fin side wall 8, and the fin side wall 8 indicates a rotation direction in which the fin 5 is rotated when the cap nut is screwed.

In FIG. 3, the direction of rotation is indicated by an arrow, and a fin 5 having a fin outer surface 10 and a fin side wall 8 pointing in the direction of rotation is shown. The fin sidewall 8'and the fin inner surface 11 pointing in the direction of rotation are not visible exactly. In this embodiment, the fin side wall 8 pointing in the rotation direction is provided with an angle α, whereas the other fin side wall 8 ′ does not have the angle α, that is, has no inclination. Therefore, the fin side wall 8 ′ extends parallel to the longitudinal axis of the clamp cage 2. In the illustration of FIG. 4, the fin side wall 8 of the fin 5 is arranged at an angle α with respect to the longitudinal axis of the clamp cage 2 and thus with respect to the fin side wall 8′ of the fin 5 of FIG. It is shown. The slanted arrangement of the fin sidewalls 8 allows the assembled clamp diameter shown by the solid line 14 to be reduced compared to the non-tilted clamp diameter shown by the broken line 13. The inner diameter of the free end 16 of the fin 5 in the unassembled state is indicated by the dashed-dotted circle 12. In one embodiment, the angle α is 3° to 5°.

FIG. 5A shows a side view of the clamp cage 2, which is the original view of the enlarged partial view of FIG. 4, and an observation line with respect to FIGS. 5B and 5C. FIG. 5B shows the second fin portion 6 of the cross section along the line 2, and FIG. 5C shows the first fin portion of the cross section along the line 1. .. The stress center distance 17 and the tangential force 18 generated in the second fin portion (B of FIG. 5) and the first fin portion (C of FIG. 5) can be seen.

Claims (5)

A cable terminal component for a cable terminal connector (15) in the form of a sleeve-shaped clamp cage (2) with fins (5) arranged at the end provided for cable insertion, The fins (5) have fin walls (8,8') facing each other and parallel and deviating from the radial direction, the fin walls (8,8') being under the action of a radial force. At least in the cable terminal component that changes the mutual position,
The fin (5) has a first fin portion (6) at the fixed end of the fin (5) and a second fin portion at the free end of the fin (5) following the fixed end. Have (7),
The second fin portion (7) has a larger inner diameter and outer diameter than the first fin portion (6),
A cable terminal constituent member characterized by the above. The fin width of the outer surface (10) of the fin (5) is larger than that of the inner surface (11) when the fin walls (8, 8') facing each other are at least on one side of the fin (5). Large enough to have a predetermined angle (α) with respect to the longitudinal axis of the sleeve-shaped clamp cage (2),
The cable terminal constituent member according to claim 1. Said fin wall (8) pointing in the direction of rotation has said angle (α),
The cable terminal constituent member according to claim 2. Said angle (α) is between 1° and 20°, preferably between 3° and 5°,
The cable terminal constituent member according to claim 2 or 3. The angle (α) is mechanically sufficiently stable at the fin free end (16) from the length and width of the fin (5) and the clamp inner diameter (13, 14) formed by the fin free end. It is set so that the remaining fin width can be obtained,
The cable terminal constituent member according to any one of claims 1 to 4.