CN112134249A - Power cable terminal - Google Patents

Abstract

The invention relates to a power cable termination comprising: the cable connecting assembly comprises a conductor connecting sleeve for fixing a part of a cable with one end peeled off and a conductor connecting piece suitable for being matched and connected with the conductor connecting sleeve; the terminal adapter sleeve comprises a male end suitable for being matched and connected with the conductor adapter sleeve, and a female end suitable for being matched and connected with the outgoing conductor. The power cable terminal can improve the convenience and high efficiency of assembly among the components of the power cable.

Description

Power cable terminal

Technical Field

The invention relates to the technical field of cable connection, in particular to a power cable terminal.

Background

The assembling mode among the components of the power cable terminal not only directly influences the assembling efficiency of the whole power cable terminal, but also directly influences the assembling requirement of the power cable terminal. In some cases, the power cable terminal has an internal structure which needs to be assembled on site, and in consideration of the limitation of assembly conditions during field assembly, the convenience of assembly among components is particularly required.

Disclosure of Invention

The invention aims to provide a power cable terminal, which aims to solve the technical problem of improving the convenience and high efficiency of assembly among parts of the power cable terminal.

The power cable terminal of the present invention is realized by:

a power cable termination comprising:

the cable connecting assembly comprises a conductor connecting sleeve for fixing a part of a cable with one end peeled off and a conductor connecting piece suitable for being matched and connected with the conductor connecting sleeve;

and the terminal connecting sleeve comprises a male end suitable for being matched and connected with the conductor connecting sleeve and a female end suitable for being matched and connected with the outgoing conductor.

In a preferred embodiment of the present invention, the conductor connecting member comprises:

the annular connecting sleeve penetrates through a central cavity along the axial direction of the annular connecting sleeve;

at least one pair of concave grooves are formed on the outer wall of the annular connecting sleeve in a concave mode at intervals;

the at least one pair of lock catches are embedded in the concave grooves in a one-to-one corresponding mode; the lock catch comprises a mounting portion suitable for being embedded in the concave groove and a lock hook connected with the mounting portion.

In a preferred embodiment of the present invention, a notch is further formed in a sidewall of the annular connecting sleeve, and the notch is adapted to extend into the central cavity after the latch hook penetrates through the notch.

In a preferred embodiment of the present invention, the latch hook includes a connecting portion connected to the mounting portion, and a convex hook connected to an end of the connecting portion away from the mounting portion in a bent manner;

the convex hook is raised relative to the connecting part so that the convex hook and the connecting part are in an L-shaped structure.

In a preferred embodiment of the present invention, the conductor connecting sleeve includes a body and a retaining shaft integrally connected with the body and adapted to be inserted into a central cavity of the conductor connecting member; and

the male end is fixedly sleeved with the outer wall of the body.

In a preferred embodiment of the present invention, at least one pair of bosses adapted to be engaged with at least one pair of latches in a one-to-one correspondence is convexly disposed on a circumferential sidewall of the anti-backup shaft.

In a preferred embodiment of the present invention, the cable connection assembly further includes a stress cone sleeved on the outer skin of the portion of the cable close to the conductor connection sleeve, and a cone support assembly connected to an end of the stress cone far from the conductor connection sleeve; wherein

The cone support assembly comprises a supporting part connected with the stress cone, a plurality of compression springs connected with the supporting part in an abutting mode, and a bottom support connected with one end, far away from the supporting part, of each compression spring in an abutting mode.

In a preferred embodiment of the present invention, the supporting portion and the bottom support are provided with connecting holes communicated with the inner hole of the compression spring; and

the connecting holes respectively positioned on the supporting part and the bottom support are suitable for the compression bolts to pass through so as to realize the compression and the connection among the bottom support, the compression spring and the supporting part.

In a preferred embodiment of the present invention, the power cable terminal further includes a flange abutting against the hold-down bolt and sleeved on the cable sheath;

the flange is connected with the bottom support in a matching mode through a screw; and

and one end of the flange, which is far away from the bottom support, is matched and connected with the metal shielding connecting ring which is sleeved on the cable sheath.

In a preferred embodiment of the present invention, the power cable terminal further includes an outer sleeve, and a top cover and a bottom cover respectively coupled to two axial ends of the outer sleeve; wherein

One end of the outgoing conductor, which is far away from the terminal connecting sleeve, penetrates through the top cover; and

one end of the cable far away from the conductor connecting sleeve penetrates through the bottom cover.

Compared with the prior art, the embodiment of the invention has the following beneficial effects: the utility model discloses a power cable terminal, cable junction subassembly are fixed the one end of cable, and the rethread terminal links up the cover and realizes the cable and be qualified for the next round of competitions the transition between the conductor and link up, so, can carry out the assembling of substep nature to accomplish different modular structure to holistic power cable terminal.

Furthermore, the lock catch comprises an assembly part which is suitable for being embedded in the concave groove of the annular connecting sleeve, and a lock hook connected with the assembly part, the limit locking of the backstop shaft of the conductor connecting sleeve can be realized through the lock hook, in the process, the separation and the matching connection of the conductor connecting member and the conductor connecting sleeve can be realized only through the matching connection and the separation between the lock hook and the backstop shaft, in the process, only the lock catch needs to be directly stirred, the operation of the lock catch is realized without using redundant tools, the whole operation is convenient and efficient, the lock catch is suitable for the direct assembly operation of a power cable terminal in a factory or a use site, and the application range is wide.

Drawings

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 shows a schematic view of the internal structure of a power cable terminal provided by the present invention;

fig. 2 is a schematic view showing an internal structure of a partial structure of a power cable terminal provided by the present invention;

fig. 3 shows a second internal structural diagram of a partial structure of the power cable terminal provided by the present invention;

fig. 4 shows a first view structural diagram of a conductor connection of a power cable termination provided by the present invention;

fig. 5 shows a second perspective view of a conductor connection of a power cable termination provided by the present invention;

fig. 6 shows a third perspective view of a conductor connection of a power cable termination provided by the present invention;

fig. 7 shows a fourth view structural diagram of a conductor connection of a power cable termination provided by the present invention;

fig. 8 shows a schematic view of the construction of an annular connection sleeve of a conductor connection of a power cable termination according to the invention;

fig. 9 shows a schematic structural view of a latch of a conductor connector of a power cable termination provided by the present invention;

fig. 10 is a first view structural diagram illustrating a state that a conductor connecting member and a conductor connecting sleeve of the power cable termination structure are coupled;

fig. 11 is a second view schematically illustrating the conductor connecting member and the conductor connecting sleeve of the power cable termination structure according to the present invention;

FIG. 12 is a schematic sectional view taken along line A of FIG. 11;

fig. 13 shows a schematic view of a conductor connection sleeve of a power cable termination structure according to the invention.

In the figure: the cable connector comprises an annular connecting sleeve 1, a concave groove 2, a central cavity 3, a notch 5, a notch 7, an assembling part 8, a connecting part 9, a convex hook 10, a body 11, a retaining shaft 12, a boss 13, a cable A, a male end 21, a female end 22, an outgoing conductor B, a stress cone 23, a bearing part 25, a compression spring 26, a bottom support 27, a connector sleeve 28, a compression bolt 29, a flange 30, a metal shielding connecting ring 31, an outer sleeve 32, a top cover 33, a bottom cover 35, a longitudinal part 36 and a transverse part 38.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.

Referring to fig. 1 and 13, the present embodiment provides a power cable terminal including: cable connection assemblies and termination sleeves. The cable connecting assembly comprises a conductor connecting sleeve and a conductor connecting piece, wherein the conductor connecting sleeve is used for fixing a part of one end of a cable A which is peeled, the conductor connecting piece is suitable for being matched and connected with the conductor connecting sleeve, in the process of assembling the cable A, the outer skin of one end of the cable A is peeled, and then the cable A with the outer skin removed is matched and fixed with the conductor connecting sleeve. The terminal adapter sleeve includes a male end 21 adapted to mate with the conductor adapter sleeve and a female end 22 adapted to mate with an outgoing conductor B, where the outgoing conductor B may mate with the female end 22 via a plug 39, and the female end 22 may be threadably coupled to the plug 39.

In more detail, the conductor connector of the embodiment includes an annular connecting sleeve 1, at least one pair of concave grooves 2 arranged on the annular connecting sleeve 1, and at least one pair of latches connected with the at least one pair of concave grooves 2. In conjunction with the drawings of the present embodiment, a pair of two concave grooves 2 and a pair of latches connected to the pair of concave grooves 2 are symmetrically disposed on the annular connecting sleeve 1. The annular connecting sleeve 1 is made of, for example, but not limited to, a metal copper material.

Specifically, the annular connecting sleeve 1 of the present embodiment has a central cavity 3 penetrating through along the axial direction thereof; a pair of concave grooves 2 are formed on the outer wall of the annular connecting sleeve 1 in a concave mode at intervals; it should be noted that the concave groove 2 is not communicated with the central cavity 3. The pair of lock catches are embedded in the concave grooves 2 in a one-to-one correspondence manner; the latch comprises a mounting portion 8 adapted to fit in the recess 2, and a latch hook connected to the mounting portion 8.

In addition, it should be noted that a notch 5 suitable for the latch hook to penetrate and then extend into the central cavity 3 is further formed in the side wall of the annular connecting sleeve 1. A notch 7 which is communicated with the notch 5 and is suitable for the lock hook to pass through is also arranged in the concave groove 2. That is, the notch 7 is communicated with the notch 5, so that the latch hook can partially and gradually extend into the central cavity 3, and the movement track of the latch hook is not limited by the matching of the assembling part 8 and the concave groove 2 in the process of the movement of the latch hook.

Considering that the assembly part 8 can move synchronously along with the locking hook without separating from the concave groove 2 in the process that the locking hook moves from the outer wall of the annular connecting sleeve 1 to the central cavity 3, the assembly part 8 of the embodiment adopts a cylindrical structure; and the section of the concave groove 2 is of an arc-shaped structure. Note that the fitting portion 8 is interference-fitted with the concave groove 2, and the fitting portion 8 is adapted to rotate in the concave groove 2. The condition that assembly portion 8 breaks away from in the depressed groove 2 can not appear along with the in-process of latch hook motion in interference fit's the condition for assembly portion 8, and assembly portion 8 can also rotate in depressed groove 2 moreover, and here only needs to exert certain stirring effort to the latch hook, can make latch hook and assembly portion 8 move together through stirring under the condition of latch hook.

In more detail, the latch hook of the present embodiment includes a connecting portion 9 connected to the mounting portion 8, and a convex hook 10 connected to an end of the connecting portion 9 away from the mounting portion 8; the male hook 10 is raised relative to the connection portion 9 such that the male hook 10 and the connection portion 9 are in an L-shaped configuration. It should also be noted here that the male hook 10 is bent toward the central cavity 3 with respect to the connecting portion 9. The significance of this design is that when the conductor connector of the present embodiment is applied to the connection structure of the power cable a, the male hook 10 can be effectively coupled to other structures after the central cavity 3 is coupled to other structures.

In an alternative embodiment, the end surface of the convex hook 10 facing the central cavity 3 is an arc surface, and the arc surface is mainly used for keeping a good fit contact effect with other components when the conductor connector of the present embodiment is applied to the connection structure of the power cable a.

Still further, the conductor connecting sleeve of the present embodiment includes a body 11 and a retaining shaft 12 integrally connected to the body 11 and adapted to be inserted into the central cavity 3 of the conductor connecting member. The male end 21 is fixedly sleeved with the outer wall of the body 11, and the body 11 and the male end 21 can be connected in a threaded matching mode.

More specifically, a pair of bosses 13 adapted to be fitted with a pair of latches in a one-to-one correspondence is convexly provided on the circumferential side wall of the retaining shaft 12. In detail, the convex hook 10 of the lock catch is suitable for being matched with the end face, facing the conductor connecting sleeve, of the boss 13 in a clamping and embedding manner.

That is to say, in the process of adapting the conductor connecting piece and the conductor connecting sleeve, the stopping shaft 12 is inserted into the central cavity 3 of the conductor connecting piece, and then the locking hook is shifted, so that the convex hook 10 of the locking hook extends into the central cavity 3 along the notch 5, and finally the convex hook 10 can be adapted to the boss 13, at this time, the stopping shaft 12 cannot be separated from the central cavity 3 through the matching of the convex hook 10 and the boss 13, so that the adapting connection of the conductor connecting sleeve and the conductor connecting piece is realized.

The cable connecting component of the embodiment further comprises a stress cone 23 sleeved on the outer skin of the part, close to the conductor connecting sleeve, of the cable A, and a cone support assembly connected with one end, far away from the conductor connecting sleeve, of the stress cone 23; the cone support assembly comprises a supporting part 25 connected with the stress cone 23, a plurality of compression springs 26 connected with the supporting part 25 in an abutting mode, and a bottom support 27 connected with one end, far away from the supporting part 25, of the compression springs 26 in an abutting mode. It should be noted that, a joint sleeve 28 is also integrally injection-molded on the outer sheath of the cable a by an epoxy resin material, and one end of the stress cone 23 facing the conductor connecting sleeve abuts against the joint sleeve 28.

It should be further noted that the supporting portion 25 and the bottom support 27 are provided with connecting holes communicated with the inner hole of the compression spring 26; and attachment holes on the support 25 and shoe 27, respectively, are adapted for passage of a compression bolt 29 to effect a compression fit between the shoe 27, compression spring 26 and support 25. In this way, under the elastic action of the compression spring 26, the effect of maintaining the compression between the stress cone 23 and the joint sleeve 28 can be achieved.

In addition, the power cable terminal of the present embodiment further includes a flange 30 abutting against the hold-down bolt 29 and fitted over the sheath of the cable a; the flange 30 is connected with the bottom support 27 in a matching way through screws; and a metal shielding connecting ring 31 which is matched and connected with one end of the flange 30 far away from the bottom support 27 and is sleeved on the sheath of the cable A.

In addition, the power cable terminal also comprises an outer sleeve 32, and a top cover 33 and a bottom cover 35 which are respectively matched and connected with the two axial ends of the outer sleeve 32; wherein one end of the outgoing conductor B far away from the terminal connecting sleeve passes through the top cover 33; and the end of the cable a remote from the conductor connection sleeve passes through the bottom cover 35. The outer jacket 32 of this embodiment forms an external protection for the overall power cable termination structure.

In addition, a cone-supporting protecting cover is further coupled between the bottom cover 35 and the outer sleeve 32, the cone-supporting protecting cover includes a longitudinal portion 36 and a transverse portion 38, the longitudinal portion 36 wraps the outer wall of the outer sleeve 32, the longitudinal portion 36 is further coupled to the bottom cover 35 by screws, and the transverse portion 38 is fixed to the flange 30 by screws.

The above embodiments are provided to further explain the objects, technical solutions and advantages of the present invention in detail, it should be understood that the above embodiments are only examples of the present invention and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms indicating an orientation or positional relationship are based on the orientation or positional relationship shown in the drawings only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the present invention, unless otherwise expressly stated or limited, the first feature may be present on or under the second feature in direct contact with the first and second feature, or may be present in the first and second feature not in direct contact but in contact with another feature between them. Also, the first feature being above, on or above the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the first feature is at a higher level than the second feature. A first feature that underlies, and underlies a second feature includes a first feature that is directly under and obliquely under a second feature, or simply means that the first feature is at a lesser level than the second feature.

Claims (10)

1. A power cable termination, comprising:

the cable connecting assembly comprises a conductor connecting sleeve for fixing a part of a cable with one end peeled off and a conductor connecting piece suitable for being matched and connected with the conductor connecting sleeve;

and the terminal connecting sleeve comprises a male end suitable for being matched and connected with the conductor connecting sleeve and a female end suitable for being matched and connected with the outgoing conductor.

2. The power cable termination of claim 1, wherein the conductor connector comprises:

the annular connecting sleeve penetrates through a central cavity along the axial direction of the annular connecting sleeve;

at least one pair of concave grooves are formed on the outer wall of the annular connecting sleeve in a concave mode at intervals;

the at least one pair of lock catches are embedded in the concave grooves in a one-to-one corresponding mode; the lock catch comprises a mounting portion suitable for being embedded in the concave groove and a lock hook connected with the mounting portion.

3. The power cable terminal according to claim 2, wherein a notch is further formed in a sidewall of the annular connection sleeve, and the notch is adapted to extend into the central cavity after the latch hook penetrates through the notch.

4. The power cable termination of claim 2, wherein the latch hook includes a connecting portion connected to the mounting portion, and a male hook bent and connected to an end of the connecting portion remote from the mounting portion;

the convex hook is raised relative to the connecting part so that the convex hook and the connecting part are in an L-shaped structure.

5. The power cable termination of claim 1, wherein the conductor connection sleeve comprises a body and a backstop shaft integrally connected to the body adapted to be inserted into a central cavity in the conductor connector; and

the male end is fixedly sleeved with the outer wall of the body.

6. The power cable termination of claim 5, wherein at least one pair of bosses adapted to mate with at least one pair of latches in a one-to-one correspondence are provided protruding from a circumferential sidewall of the anti-backup shaft.

7. The power cable termination of claim 1, wherein the cable connection assembly further comprises a stress cone attached to the outer skin of the portion of the cable proximate the conductor connector sleeve, and a cone support assembly attached to an end of the stress cone distal from the conductor connector sleeve; wherein

The cone support assembly comprises a supporting part connected with the stress cone, a plurality of compression springs connected with the supporting part in an abutting mode, and a bottom support connected with one end, far away from the supporting part, of each compression spring in an abutting mode.

8. The power cable termination of claim 7, wherein the support portion and the shoe define attachment holes therethrough for engaging the inner bore of the compression spring; and

the connecting holes respectively positioned on the supporting part and the bottom support are suitable for the compression bolts to pass through so as to realize the compression and the connection among the bottom support, the compression spring and the supporting part.

9. The power cable termination of claim 8, further comprising a flange abutting the hold-down bolt and disposed over the cable sheath;

the flange is connected with the bottom support in a matching mode through a screw; and

and one end of the flange, which is far away from the bottom support, is matched and connected with the metal shielding connecting ring which is sleeved on the cable sheath.

10. The power cable termination of claim 9, further comprising an outer sleeve, and top and bottom caps respectively coupled to axial ends of the outer sleeve; wherein

One end of the outgoing conductor, which is far away from the terminal connecting sleeve, penetrates through the top cover; and

one end of the cable far away from the conductor connecting sleeve penetrates through the bottom cover.

Images