CN213425240U

CN213425240U - Mechanical terminal and cable assembly

Info

Publication number: CN213425240U
Application number: CN202022279254.5U
Authority: CN
Inventors: 蔡军伟; 薛凌云
Original assignee: Anhui Xiangdeng Electric Co ltd
Current assignee: Anhui Xiangdeng Electric Co ltd
Priority date: 2020-10-12
Filing date: 2020-10-12
Publication date: 2021-06-11
Anticipated expiration: 2030-10-12

Abstract

The embodiment of the utility model provides a connector is related to, a mechanical terminal and cable subassembly very much, and this mechanical terminal includes: the cable connector comprises an access section and a wiring section, wherein the access section and the wiring section are coaxially arranged along the direction of a preset axis; and the connection section is provided with a connection hole communicated with the mounting groove along the direction vertical to the preset axis. In addition, the mechanical terminal further includes: and a locking member having a portion inserted into the mounting groove from the connection hole and capable of pressing the cable conductor inserted into the mounting groove. Compared with the prior art, the cable conductor of different specifications can be connected with the mechanical terminal, and meanwhile, the increase of contact resistance caused by the installation process can be effectively avoided, so that the increase of heat productivity is greatly prevented, and potential safety hazards are avoided.

Description

Mechanical terminal and cable assembly

Technical Field

The embodiment of the utility model provides a connector, in particular to mechanical terminal and cable assembly.

Background

The shielding separable cable connector is applied to systems such as ring main units, branch boxes and box transformers, is one of the main products for cable underground of the current power distribution system, and is high in market demand. The separable cable connector (cable accessory) is internally provided with a mechanical terminal, one end of the mechanical terminal is in pressure joint with a cable conductor, and the other end of the mechanical terminal is connected with the equipment sleeve in a thread mode or the like, so that the connection and conduction of a power line are realized.

At present, the specifications of cable conductors in a circuit are more, and different conductor specifications need to be specially corresponding to a crimping terminal, so that the specifications of the crimping terminal are various, the application scene of a single crimping terminal is smaller, and the terminal cannot be used universally. In addition, the existing crimping terminal is generally connected with the cable conductor in a crimping mode, the connection mode is greatly influenced by the installation process, when the cable conductor is installed improperly, the contact resistance is increased, the heating value is increased, and certain hidden trouble is caused to the safe operation of a circuit.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of the utility model is to provide a mechanical terminal and cable subassembly can make the conductor specification that mechanical terminal can the different cables of adaptation to enlarged the application scene of mechanical terminal, simultaneously, can avoid mechanical terminal to be connected the back with cable conductor, the calorific capacity that arouses because of mounting process's problem increases.

In order to achieve the above object, an embodiment of the present invention provides a mechanical terminal, including: the cable connector comprises an access section and a wiring section, wherein the access section and the wiring section are coaxially arranged along a preset axis direction, and the wiring section is connected with the access section and is provided with an installation groove capable of being accessed to a cable conductor along the preset axis direction; the wiring section is provided with a connecting hole communicated with the mounting groove along the direction vertical to the preset axis;

the mechanical terminal further includes: the locking piece is partially inserted into the mounting groove from the connecting hole and is pressed into the cable conductor in the mounting groove.

Additionally, the embodiment of the utility model provides a cable subassembly is still provided, include: an electrical cable, at least one mechanical terminal as described above; at least one end of the cable is a cable conductor that is inserted into the mounting groove of the mechanical terminal.

The embodiment of the utility model provides a for prior art, because the connecting hole is seted up along the direction that the axis was predetermine to the perpendicular to in the wiring section of mechanical terminal, and this connecting hole communicates with the mounting groove of seting up on the mechanical terminal wiring section each other, the mechanical terminal of this embodiment still includes the retaining member simultaneously, this retaining member accessible connecting hole inserts in the mounting groove, thereby compress tightly the cable conductor in the mounting groove, in order to realize the fixed of cable conductor in the mounting groove, and with the electric connection of wiring section, this kind of fixed cable conductor's mode, can make the cable conductor of different specifications all can realize being connected with the mechanical terminal, still can effectively avoid the increase of the contact resistance because of mounting process leads to simultaneously, thereby very big calorific capacity increase has been prevented, the potential safety hazard has been stopped.

In addition, the connecting hole is the screw hole, the retaining member is the bolt, the bolt includes: the screw bolt is screwed into the threaded hole in the mounting groove, and the screw cap is located outside the wiring section.

In addition, the mechanical terminal further includes: and the flexible gasket is sleeved on the stud and is positioned outside the wiring section.

In addition, one side of the flexible gasket opposite to the wiring section is an annular plane or an annular cambered surface.

In addition, the mounting groove has: the groove comprises a groove bottom, a groove opening opposite to the groove bottom, and a groove wall connecting the groove bottom and the groove opening; wherein the notch is located on a side of the wire connection section away from the access section.

In addition, the notch is a groove.

In addition, the groove wall is provided with internal threads around the axis direction of the mounting groove.

In addition, the axle center of the mounting groove and the axle center of the connection section are eccentrically arranged.

In addition, the access section is a straight head or an elbow.

Drawings

Fig. 1 is a schematic structural view of a mechanical terminal according to a first embodiment of the present invention, which is a straight terminal;

FIG. 2 is a schematic top view of FIG. 1;

fig. 3 is a schematic structural view of the mechanical terminal according to the first embodiment of the present invention when the mechanical terminal is an elbow terminal;

fig. 4 is a schematic top view of fig. 3.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the following will explain in detail each embodiment of the present invention with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that in various embodiments of the invention, numerous technical details are set forth in order to provide a better understanding of the present application. However, the technical solutions claimed in the claims of the present application can be implemented without these technical details and with various changes and modifications based on the following embodiments.

The first embodiment of the present invention relates to a mechanical terminal, as shown in fig. 1, the mechanical terminal includes: the cable connector comprises an access section 1 and a wiring section 2, wherein the access section 1 and the wiring section 2 are coaxially arranged along a preset axial direction, and the wiring section 2 is provided with a mounting groove 21 which can be accessed to a cable conductor (not marked in the figure) along the preset axial direction; the connection section 2 is provided with a connecting hole 22 communicated with the mounting groove 21 along the direction vertical to the preset axis.

As shown in fig. 1 and 2, the mechanical terminal of the present embodiment further includes: a locker 3, and the locker 3 is partially inserted into the mounting groove 21 from the coupling hole 22 and can press the cable conductor received in the mounting groove 21.

As can be seen from the above, since the connection segment 2 of the mechanical terminal is provided with the connection hole 22 along the direction perpendicular to the preset axis, and the connection hole 22 is communicated with the mounting groove 21 provided on the connection segment 2 of the mechanical terminal, meanwhile, the mechanical terminal of the present embodiment further includes: retaining member 3, this retaining member 3 accessible connecting hole 22 inserts in the mounting groove 21, thereby compress tightly the cable conductor in the mounting groove 21, in order to realize the fixed of cable conductor in mounting groove 21, and with wiring section 2's electric connection, this kind of mode of fixed cable conductor, can make the cable conductor of different specifications all can realize being connected with mechanical terminal, the increase of the contact resistance that still can effectively avoid leading to because of mounting process simultaneously, thereby very big prevent calorific capacity increase, the potential safety hazard has been stopped.

Specifically, in the present embodiment, as shown in fig. 1, the attaching hole 22 is a threaded hole and the corresponding locker 3 is a bolt, and, as shown in fig. 2, the bolt includes: a stud 31 screwed into the threaded hole, and a nut 32 provided at an end of the stud 31, wherein the stud 31 is screwed into the mounting groove 21 from the threaded hole, and the nut 32 is located outside the wire connecting section 2. It can be seen that, in the present embodiment, the locking member 3 is a bolt, and meanwhile, the connection hole 22 opened on the connection segment 2 is a threaded hole, and the corresponding locking member 3 is a bolt, so that in practical application, the stud 31 of the bolt can continuously enter the mounting groove 21 by means of mutual screwing with the threaded hole, thereby compressing the cable conductor inserted into the mounting groove 21.

Further, as shown in fig. 1, the mechanical terminal according to the present embodiment preferably further includes: and the flexible washer 4 is sleeved on the stud 31, and the flexible washer 4 is positioned outside the wire connecting section 2. It is thus clear that the flexible washer 4 prevents the screw cap 32 from crushing the terminal section 2 when the screw presses the cable conductor, thereby further increasing the service life of the mechanical terminal of the present embodiment. It should be noted that, in the present embodiment, the flexible gasket 4 may be made of a flexible material such as rubber or plastic, so as to further avoid potential safety hazards caused by electric leakage of the terminal, and one side of the flexible gasket 4 opposite to the wire connecting section 2, as shown in fig. 1, may be a circular plane, and of course, in actual application, one side of the flexible gasket 4 opposite to the wire connecting section 2 may also be a circular arc surface, but in the present embodiment, the structure of one side of the flexible gasket 4 opposite to the wire connecting section 2 is not specifically limited.

In addition, as shown in fig. 1, the aforementioned mounting groove 21 has: a groove bottom 211, a notch 212 opposite the groove bottom 211, and a groove wall 213 connecting the groove bottom 211 and the notch 212. Wherein the notch 212 is located on the side of the wire connection section 2 remote from the access section 1. In addition, in the present embodiment, the notch 212 is a bevel, so that when the cable conductor is inserted into the mounting groove 21, the cable conductor can be guided through the notch 212, thereby facilitating the insertion of the cable conductor.

However, as shown in fig. 1, preferably, the groove wall 213 is provided with an internal thread 214 around the axial direction of the mounting groove 21, and the internal thread 214 can increase the contact length between the groove wall 213 of the mounting groove 21 of the terminal connecting section 2 and the cable conductor, thereby increasing the pulling force, reducing the heat generation amount, and further prolonging the service life of the mechanical terminal of the present embodiment.

In the present embodiment, as shown in fig. 1, the axis of the mounting groove 21 and the axis of the wire connecting segment 2 are eccentrically arranged, that is, the axis of the mounting groove 21 and the axis of the wire connecting segment 2 are parallel to each other, that is, the mounting groove 21 is eccentrically arranged when the wire connecting segment 2 is mounted in the present embodiment.

Furthermore, in the present embodiment, in order to meet different use requirements, the access section 1 may be a straight end, as shown in fig. 1 and 2, so that the mechanical terminal of the present embodiment is a straight end terminal, or the access section 1 may also be an elbow, as shown in fig. 3 and 4, so that the mechanical terminal of the present embodiment can be an elbow terminal.

A second embodiment of the present invention relates to a cable assembly, including: an electrical cable, at least one mechanical termination as described in the first embodiment. Wherein at least one end of the cable is a cable conductor and the cable conductor is inserted into the mounting groove 21 of the mechanical terminal.

As can be seen from the above, since the connection segment 2 of the mechanical terminal is provided with the connection hole 22 along the direction perpendicular to the preset axis, and the connection hole 22 is communicated with the mounting groove 21 provided on the connection segment 2 of the mechanical terminal, meanwhile, the mechanical terminal of the present embodiment further includes: retaining member 3, this retaining member 3 accessible connecting hole 22 inserts in the mounting groove 21, thereby compress tightly the cable conductor in the mounting groove 21, in order to realize the fixed of cable conductor in mounting groove 21, and with wiring section 2's electric connection, this kind of fixed cable conductor's mode, but the cable conductor of different specifications all can be connected with mechanical terminal realization, the increase of the contact resistance that still can effectively avoid leading to because of mounting process simultaneously, thereby very big prevent calorific capacity increase, the potential safety hazard has been stopped.

It will be understood by those skilled in the art that the foregoing embodiments are specific examples of the invention, and that various changes in form and details may be made therein without departing from the spirit and scope of the invention in its practical application.

Claims

1. A mechanical terminal, comprising: the cable connector comprises an access section and a wiring section, wherein the access section and the wiring section are coaxially arranged along a preset axis direction, and the wiring section is connected with the access section and is provided with an installation groove capable of being accessed to a cable conductor along the preset axis direction; the wiring section is provided with a connecting hole communicated with the mounting groove along the direction vertical to the preset axis;

2. The mechanical terminal of claim 1, wherein the attachment hole is a threaded hole, the retaining member is a bolt, and the bolt comprises: the screw bolt is screwed into the threaded hole in the mounting groove, and the screw cap is located outside the wiring section.

3. The mechanical terminal of claim 2, further comprising: and the flexible gasket is sleeved on the stud and is positioned outside the wiring section.

4. The mechanical terminal as claimed in claim 3, wherein a side of the compliant washer opposite the wire segment is an annular flat surface or an annular arcuate surface.

5. The mechanical terminal of claim 1, wherein the mounting groove has: the groove comprises a groove bottom, a groove opening opposite to the groove bottom, and a groove wall connecting the groove bottom and the groove opening;

wherein the notch is located on a side of the wire connection section away from the access section.

6. The mechanical terminal of claim 5, wherein the notch is a bevel.

7. The mechanical terminal as claimed in claim 5, wherein the groove wall is provided with an internal thread around an axial direction of the mounting groove.

8. A mechanical terminal according to any of claims 1-7, wherein the axis of the mounting slot is located off-centre from the axis of the wire segment.

9. The mechanical terminal of claim 1, wherein the access section is straight or bent.

10. An electrical cable assembly comprising: an electrical cable, at least one mechanical terminal according to any one of claims 1-9; at least one end of the cable is a cable conductor that is inserted into the mounting groove of the mechanical terminal.