Electric cable, containing external marking, and method of contact cartridge pressing on electric cable, containing external marking

FIELD: electricity.

SUBSTANCE: object of the present invention is an electric cable (1), containing shell (2) with external marking. Marking is formed by block (3), at the same time pictures (4, 5) are arranged serially along cable length, besides, block of pictures is repeated at least twice along the cable length, starting from the free end of cable (12). The object of the present invention is also the method to press contact (7) on such a cable, at the same time external marking makes it possible to determine position of cable in cartridge.

EFFECT: good quality of further pressing.

18 cl, 10 dwg

 

The technical field

The present invention relates to an electrical cable containing outer markup, allows you to monitor the position of the cable in the sleeve, which secures the compression on said cable. The object of the present invention is also a method of compression sleeves on this cable. In particular, the invention relates to a visually observable markings made on the cable jacket, these markings shall be repeated and should allow by simple visual observation to ensure the correct position of the cable in the sleeve before compression sleeve on the cable and to provide, thus, the continuity of the electrical connection between the cable and the sleeve.

Prior art

Currently, for connection of the cable core with the sleeve contact, as is well known, use a sleeve equipped with a control hole. The pilot hole made through the wall of the sleeve, extends into the cavity of the sleeve. The pilot hole allows, in particular, to check the position of the cable in the sleeve before compression sleeve on the cable. Thus, it is possible to verify the correct position of the cable before compression and, therefore, the continuity of the electrical connection between the cable and the contact. For this purpose it is sufficient control is twistie check to the cable core has been properly installed inside the sleeve.

However, sometimes you have to use the contact sleeve which has no control hole or pilot hole is clogged. This contact corresponds, in particular, the case when using a cable that contains electrically conductive core made of aluminum. Indeed, in this case, it is preferable to avoid contact with air, such a conductive core, to prevent oxidation, which can lead to deterioration in the electrical conductivity between the conductive core and the contact. The use of a contact sleeve which has no control hole or pilot hole is clogged, allows you to avoid getting air into the cartridge, this contact after its compression and reduce, therefore, the possibility of oxidation of the conductive core of the cable. However, in this case it is impossible to check the position of the cable in contact with the sleeve before compression, since the sleeve does not contain a reference hole or pilot hole clogged. This increases the possibility of defect compression.

Incorrect compression sleeve on the cable may result in periodic interruptions of contact or heat cable to premature the aging of the connection between the cable and the contact or loss of function of the electronic system, equipped with such an unreliable connection.

The invention

The present invention is to implement a good crimp contact socket for electrical cable for continuity of electrical connections between the cable and the electronic device connected to the cable by means of contact.

The present invention is to provide a means of checking the position of the cable in contact with the sleeve before compression, to ensure the normal position of the cable in the sleeve and the continuity of the electrical connections along the cable and contact. Another objective of the present invention is to develop a method that provides a reliable electrical compression sleeve on the cable, regardless of the material of the conductive core of the cable.

To achieve this result, according to the invention it is proposed to perform visual control is not on the sleeve, designed for crimping on the cable, and the cable itself. On the cable in accordance with the present invention along its length perform repetitive external markings. The outer layout consists of a set of two consecutive images along the length of the cable that is repeated at least two times the length of the cable. Markup allows to determine the position of the cable into the sleeve to contact the mentioned compression sleeves at stake in the act. According to the invention is a means of visual control is used for precise cutting of the cable to form a connecting end. The connecting end is sanded to expose the cable core, which is inserted into the socket contact. After installation of the cable in the socket contact use controls formed markup, to ensure the normal position of the cable in the sleeve. After that, the sleeve compresses on the cable, providing, thus, the electric compression. Visual monitoring tool in accordance with the present invention it is necessary, therefore, at the time of cutting the cable, at the moment of introduction of the cable into the contact sleeve and compression sleeve on the cable. Following these steps, reach reliable compression sleeve on the cable. The step between two consecutive sets of two images, and the distance between the two drawings one set depend, in particular, from the cable section. For a given cross-section of the cable, which corresponds to the size of the contact socket, perform a special outdoor layout with fixed step and distance, which provide further reliable visual inspection and, therefore, reliable electric compression sleeves on contact and does not require other controls, such as visual inspection through the pilot hole while. The following markup in accordance with the present invention can be performed on the currently existing cables. Indeed, the markup in accordance with the present invention can be applied to the sheath of all cables and can even be combined with other types of markup intended for other purposes, for example for marking cable. This markup can easily be performed using a laser.

Thus, an object of the present invention is an electric cable containing shell with outer markings formed by a block of two consecutive images along the length of the cable, characterized in that the block of figures is repeated at least two times the length of the cable, starting from the free end of the cable, the markup depends on the cable diameter.

According to various examples of the present invention, the cable may contain all or part of the following additional features:

the distance between the two pictures, one block and/or the distance between two adjacent blocks of drawings depends on the diameter of the cable;

the markup is repeated at least at the two ends of the cable;

the markup is repeated throughout the length of the cable;

the distance between two adjacent blocks of the drawings is a constant for a given cross-section of the cable;

two consecutive drawings is but one block are separated from each other Unallocated area;

the figures are squares or rectangles;

the cable core is made of aluminum.

The object of the present invention is also a method of crimping sleeve contact on the cable, characterized in that it includes a stage on which before compression cable is marked by an external cue that is repeated along the length of the cable, so that you can control the position of the cable in the sleeve.

For example, the outer marking is made in the form of a block of two illustrations, both drawings are executed sequentially along the length of the cable, and the unit of figures is repeated at least two times the length of the cable, starting from the free end of the cable. In the preferred exemplary embodiment of the present invention, the distance between two adjacent images belonging to two different blocks of the drawings, is essentially equal to the depth of the contact socket designed for crimping on the cable.

The method in accordance with the present invention may further comprise all or part of the following stages, which are:

the cable is cut between the two drawings of the same block, then the cable is introduced into the socket and check that the open end of the sleeve contact was relatively markup in the area of compliance, indicating the correct position of the compression and compresses the socket contact on the cable. While ka is spruce is not inserted in the socket correctly, it continues to enter. Thus, after the validation phase, you can return to the stage of introduction of the cable into the socket. Compression is produced only when the open end of the sleeve contact will be in the correct position in the area of compliance.

In a particular example implementation of the method in accordance with the present invention the correct position of the compression gain, when the open end of the sleeve contact partially covers one of the two drawings block drawings, which became a part of the sleeve.

In a preferred embodiment, before the introduction of the socket contact cable smooth out.

Depending on the need, you can produce electric compression by the compression sleeve of the contact on the cable core or the seal compression by the compression sleeve of the contact on the cable jacket.

Preferably the outer markings of the shell is carried out at a laser in such a way as to achieve high accuracy, in particular, at the level of the distances between the two figures and the accuracy of the step between the two sets of figures.

You can also make manual partitioning, for example, using a marking template.

Brief description of drawings

The present invention will be more apparent from the following description, with reference to the accompanying drawings, which illustrate a non-restrictive ol the measures perform and on which:

Fig. 1A-1D depicts an example of the method of compression in accordance with the present invention;

Fig. 2A and 2B are two examples of normal positioning of the cable in the sleeve contact before compression, according to the invention;

Fig. 3A and 3B are two examples of incorrect positioning of the cable in the sleeve contact;

Fig. 4 is a schematic view of a cable according to the exemplary embodiment of the present invention.

Fig. 5 is a schematic view of a cable according to another exemplary embodiment of the present invention.

Description of the preferred embodiment variants of the invention

In Fig. 1A shows an example of a cable containing outer markings in accordance with the present invention.

Cable 1 includes an insulating outer shell 2. The marking is made in the form of block 3 of two consecutive figures 4, 5, separated from each other Unallocated area 6. Two consecutive figure 4, 5 of block 3 of the drawings follow each other along the length of the cable 1. Under the cable length 1 should be understood is the largest size of cable 1 parallel to the longitudinal axis of the cable 1. Block 3 of the drawings is repeated several times along the cable 1.

In the example of Fig. 1A figures 4, 5 is made in the form of rings, covering cable 1 along its diameter. Thus, figures 4, 5 are made continuous over the whole cross section of the cable 1. In other examples where the outer size of the weave can be made in a form other patterns.

In Fig. 4 figures 4, 5 blocks 3 of the drawings are in the form of squares. You can perform only one square in the cross section of the cable 1. You can also perform several squares in the above section, to cover the figures 4, 5 consider the cross section of the cable 1. In this case the outer markings in accordance with the present invention will be visible regardless of the position of the cable 1 is relatively user.

In Fig. 5 shows another exemplary embodiment of the cable 1 in accordance with the present invention, in which the figures 4, 5 of block 3 of the drawings are in the form of circles. Circles 4, 5 are repeated several times on the diameter of the cable, forming a continuous ring around the cable 1. Thus, regardless of the position of the cable 1 or from the place in which it is located, the outer marking is still visible. For example, if compression is performed in the blooming device, the user can control the position of the cable 1 in a sleeve contact, without changing his position and not moving the cable 1 in the blooming device to see the markup.

The distance D or the step that separates the two blocks 3 of the drawings, is constant along the cable 1. Step D may, in particular, depend on the diameter of the cable 1 and/or the depth of liner contact to which you want to insert the cable.

The distance d separating two successive figure 4, 5 odnogolosy 3 of the drawings and forming an unmarked area of 5, can also change depending on the section cable 1.

Another parameter that should be taken into account when performing the corresponding outer markings on the cable 1 is the width l of figures 4, 5. Under the width l should understand the size of the figure 4, 5, taken parallel to the axis of the cable 1. Thus, in the example shown in Fig. 5, where the drawings are in the form of circles, the width l corresponds to the diameter of the circles. In the example shown in Fig. 4, where the figures 4, 5 is made in the form of squares, the width l corresponds to the length of one side of the square.

For cable size 10 cross-section of 5 mm2step D separating two adjacent block 3, is 19 mm (0.1 mm), the distance d between the two figure 4, 5 of one unit is 2 mm (0.1 mm), and width l of figures 4, 5 is 0.5 mm (0.1 mm).

Thus, it is possible to specifically adapt the layout to the diameter of the cable 1 or cable section and, consequently, to increase the reliability of the means of visual inspection in accordance with the present invention.

According to the method of compression in accordance with the present invention the outer markings of the cable used at different stages.

First, before the introduction of cable 1 in the socket contact mentioned cable 1 is cut at the level of the Unallocated zone 6, i.e. between two successive figures 4, 5 of one unit 3 of the drawings (Fig. 1B).

Then the Abel 1 smooth out at a certain distance, to expose the core 8 of the cable 1 of a given length or the length of compression (Fig. 1C). This part of the cable 1 is formed by the core 8 of the cable 1, is designed for crimping a sleeve 9 of the pin 7.

Thereafter, the free end 12 of the cable 1 is inserted into the cavity 10 of the sleeve 9 (Fig. 1D). The exposed portion of the cable 1 forms the free end 12 of the cable 1. Under the free end 12 should be understood as a whole end of the cable 1 that is designed for insertion into pin 7.

Immediately after the introduction of the free end of the cable 1 into the cavity 10 of the sleeve 9 checks the correct positioning of the cable 1 in the sleeve 9. To do this, check the position of the open end 11 of the sleeve 9 relative to the outer markings on the cable 1. The open end 11 of the sleeve 9, you should understand the end of the sleeve 9, facing outwards, into which is inserted the free end 12 of the cable 1.

Making sure that the position of the open end 11 of the sleeve 9 around the cable 1 corresponds to the desired position, produce electric compression sleeve 9 on the core 8 of the cable 1. You can also seal the compression sleeve 9 on the sheath 2 of the cable 1. Due to the sealing of the compression improves the tightness of the connection between the cable 1 and pin 7 and lower, thus, the possibility of oxidation, in particular, when the core 8 of the cable 1 is made of aluminum.

In Fig. 2A and 2B shows two examples right is positionierung cable 1 in the sleeve 9 of the pin 7. As unit 3 of the drawings, taken for visual inspection of the position of the cable 1 in the sleeve 9, use block 3, directly observed when removing the cable 1 from the sleeve.

In Fig. 2A the open end 11 of the sleeve 9 is partially covers the first figure 4 block 3 of the drawings, which partially enters the sleeve 9. The second figure 5 block 3 is completely within the sleeve 9.

In the second example (Fig. 2B) the first figure 4 block 3 is completely outside of the sleeve 9, while the second figure 5 block 3 partially enters the sleeve 9.

In Fig. 2A and 2B are shown, respectively, in the boundaries of the interval z of conformity, by which the user makes sure that the cable 1 is properly positioned in the sleeve. In this case, the interval z of conformity is enclosed between the two figures 4, 5 of one unit 3, the unit 3 is partially in the sleeve 9. Thus, to ensure the normal position before the compression of the cable 1 in the sleeve 9, it is necessary that adopted for visual inspection of unit 3 was at least partially outside of the sleeve 9. In particular, it is necessary that the end 11 of the sleeve 9 seals the cable 1 in the interval z matching.

In Fig. 3A and 3B shows two incorrect position of the cable 1 in the sleeve 9. Block 3 of the drawings for visual inspection of the position of the cable 1 in the sleeve 9 is block 3, directly observed when removing KAB is La 1 from the sleeve 9.

In the example of Fig. 3A both figures 4, 5 unit 3 are located entirely outside of the sleeve 9, so the open end 11 of the sleeve 9 covers the cable 1 is not in the interval z compliance, and the area in front of the interval z compliance. Thus, the cable core 1 is not in the correct position in the sleeve 9, so there is no guarantee that during the compression sleeve 9 on the cable 1 is formed, the contact between the sleeve 9 and the cable core 1.

In the example of Fig. 3B block 3 of the drawings fully enters the sleeve 9, so the open end 11 of the sleeve 9 covers the cable 1 is not in the interval z compliance, and in the area outside the interval z compliance. Thus, the cable core 1 is too deep in the sleeve 9, so that the compression sleeve 9 on the cable 1 has occurred at the level of the core, which in this case will certainly occur at the level of the shell.

In both cases of Fig. 3A and 3B, the compression will not conform to the required compression, and the user can see at first sight before compression sleeve 9 on the cable 1.

As a rule, enough cable 1 contained a set of two blocks 3 of the drawings, the blocks 3 of the drawings are taken from the free end of the cable 1. In the method according to the invention, the user requires only two blocks 3 of the drawings. The first block 3 of the drawings or block 3, located at the level of free the underwater end 12 of the cable, serves as a reference point for cutting of the cable 1 and the formation of a new free end 12. The second block 3 of the drawings forms a visual means to determine the position of the cable 1 in the sleeve 9.

Of course, block 3 figures 4, 5 can be repeated more than two times the length of the cable, in particular along the length of the cable 1. This repetition of marking the entire length of the cable 1 can cut the cable 1 on any Unallocated zone 6 of block 3 of the drawings, and to get from one cable 1 more secondary cables, each of which can be used for connection with the contact 7.

Labelling in accordance with the present invention can be performed using a laser, which provides a marking with the necessary degree of accuracy. In other examples, the outer markup can be done by applying the paint on the shell 2 or producing hot outdoor markup, acting locally heat the shell 2.

Labelling in accordance with the present invention can also be performed manually using, for example, marking a template to facilitate the drawing of figures 4, 5. Manual markup can be done with the help of pencil, by spraying ink or paint, etc.

1. Electric cable (1)containing a shell (2) with outer markings formed by block (3) from two consecutive rice is ncov (4, 5) along the length of the cable, characterized in that the block of figures is repeated at least two times the length of the cable, starting from the free end (12) of the cable to form a visual layout for the subsequent formation, on the one hand, the connecting end by dividing the specified cable between the two drawings of the same block drawings and, on the other hand, to ensure the correct position of the cable in the socket and check that the sleeve surrounds the cable at intervals of conformity (z), so that the successive images (4, 5) form the interval compliance (z) and are partially outside of the sleeve, while the markup depends on the cable diameter.

2. The cable according to claim 1, characterized in that the distance (d) between the two pictures, one block and/or the distance (D) between two adjacent blocks of drawings depends on the cable diameter.

3. The cable according to any one of claims 1 or 2, characterized in that the marking is repeated at least at the two ends of the cable.

4. The cable according to any one of claims 1 or 2, characterized in that the marking is repeated throughout the length of the cable.

5. The cable according to any one of claims 1 or 2, characterized in that the distance (D) between two adjacent blocks of the drawings is a constant.

6. The cable according to claim 1, characterized in that two successive drawing of one block are separated from each other Unallocated area (6)

7. The cable according to claim 6, characterized in that the figures are squares or rectangles.

8. The cable according to claim 1, characterized in that the core (8) of the cable is made of aluminum.

9. The method of compression sleeve (9) of the pin (7) on the cable (1) according to any one of claims 1 to 8, characterized in that to check the position of the cable in the sleeve and use the external markings on the cable jacket.

10. The method according to claim 9, characterized in that the distance (D) between two adjacent figures (5, 4), belonging to two different blocks (3) drawings, pick, essentially equal to the depth liner for a contact designed for crimping on the cable.

11. The method according to any of PP or 10, characterized in that the cable is cut between the two figures (4, 5) of one block (3), insert the cable into the socket, check that the open end (11) shells were relatively markup in the interval (z) satisfy indicating the correct position of the compression, compresses the sleeve on the cable.

12. The method according to claim 11, characterized in that the interval of the match is between two drawings of block drawings, partially housed in the sleeve.

13. The method according to claim 11, characterized in that the correct position of the compression gain, when the open end of the sleeve partially covers one of the two figures (4, 5) unit (3) drawings, which partially enters the sleeve.

14. The method according to claim 11, wherein re is an introduction to the sleeve and the cable smooth out.

15. The method according to claim 11, characterized in that produce electric compression by the compression sleeve on the core (8) of cable.

16. The method according to claim 11, characterized in that the produced sealing compression by the compression sleeve on the shell (2) of cable.

17. The method according to any of PP and 10, characterized in that the outer markings of the shell is carried out with a laser.

18. The method according to any of PP and 10, characterized in that the outer markings of the shell is carried out manually using a marking template.



 

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