CN219498288U - Height increasing device, joint assembly and ring main unit - Google Patents

Abstract

The utility model belongs to the technical field of high-voltage distribution equipment, and particularly relates to an heightening device, a joint assembly and a ring main unit. The heightening device comprises an outer sleeve and a conductive component; the outer sleeve comprises a first outer sleeve section and a second outer sleeve section, the first outer sleeve section is used for being sleeved on the cable joint, and the second outer sleeve section is connected with the first outer sleeve section and protrudes out of the cable joint; at least a portion of the conductive assembly is disposed within the second outer housing tube segment and is for electrical connection with the cable connector. The conductive component is at least partially positioned on the second outer sleeve section to form a heightening device connector protruding out of the cable connector, the bus connector can be connected to the heightening device connector, and the heightening devices with different axial dimensions are arranged, so that the space of the cabinet body of the ring main unit can be optimally utilized in an axial staggered layout mode, and the space utilization rate is improved.

Description

Height increasing device, joint assembly and ring main unit

Technical Field

The utility model belongs to the technical field of high-voltage distribution equipment, and particularly relates to an heightening device, a joint assembly and a ring main unit.

Background

The high-voltage distribution equipment mainly plays roles of distribution, control on-off, protection and the like, and the ring main unit is widely applied to residential communities, high-rise buildings, large public buildings, factory distribution stations and the like as one of the ring main units. Because of different application environments, customers put different demands on the size of high-voltage power distribution equipment, and for some high-voltage power distribution equipment, the size of the space in the cabinet body is small.

It should be noted that, the ring main unit is generally provided with an a-phase connector, a B-phase connector and a C-phase connector which are respectively connected with the a-phase bus, the B-phase bus and the C-phase bus in a one-to-one correspondence manner, however, the existing three connectors are all of the same structure, so that the installation height positions of the buses are the same, the internal space layout of the ring main unit is easy to be limited, and the space utilization rate is poor.

Disclosure of Invention

The utility model provides an heightening device, a joint assembly and a ring main unit, and aims to solve the technical problem that in the prior art, the internal space of the ring main unit is limited and the space utilization rate is poor.

The first aspect of the present utility model provides an elevating device comprising an outer sleeve and a conductive assembly; the outer sleeve comprises a first outer sleeve section and a second outer sleeve section, the first outer sleeve section is used for being sleeved on the cable joint, and the second outer sleeve section is connected with the first outer sleeve section and protrudes out of the cable joint; at least a portion of the conductive assembly is disposed within the second outer housing tube segment and is for electrical connection with the cable connector.

In an alternative aspect of the utility model, the conductive assembly includes a conductive rod and a connector connected to the conductive rod; the conductive rod is arranged in the second outer sleeve section, and at least part of the connecting piece stretches into the first outer sleeve section to be connected with the cable connector.

In an alternative scheme of the utility model, the height increaser further comprises a buckle, and the buckle is clamped on the conductive rod; the buckle is arranged to abut against the axial end of the second outer sleeve section when the conductive component is connected with the cable joint so as to fix one end of the conductive component far away from the first outer sleeve section.

In an alternative scheme of the utility model, the outer peripheral side of the conductive rod is provided with a clamping groove, and at least part of the clamping groove is clamped and embedded in the clamping groove.

In an alternative scheme of the utility model, the height-increasing device further comprises a shielding cylinder, wherein the shielding cylinder is sleeved on the conducting rod and is positioned between the conducting rod and the outer sleeve, and the shielding cylinder is abutted against the buckle in the axial direction.

In an alternative scheme of the utility model, a limiting protrusion is formed on the inner wall of the first outer sleeve section in a protruding manner along the radial direction, and the limiting protrusion is provided with a first limiting surface and a second limiting surface in the axial direction; the first limiting surface is used for being abutted with the shielding barrel, and the second limiting surface is used for being abutted with the cable connector.

In an alternative scheme of the utility model, the first outer sleeve section comprises a mounting section and a limiting section, the limiting section is arranged between the mounting section and the second outer sleeve section, the mounting section is used for being sleeved on the cable joint, and the limiting section is provided with a limiting protrusion.

In an alternative aspect of the utility model, the inner diameter of the first casing section tapers in the axial direction in a direction towards the second casing section; and/or the outer diameter of the second casing section is tapered in the axial direction in a direction away from the first casing section.

The second aspect of the present utility model provides a connector assembly, including a cable connector and the above-mentioned height increasing device, wherein the first outer sleeve section is sleeved on the cable connector, and the conductive assembly is electrically connected to the cable connector.

The third aspect of the utility model provides a ring main unit, which comprises a first phase bus unit, a second phase bus unit, a third phase bus unit and the joint assembly, wherein at least one of the first phase bus unit, the second phase bus unit and the third phase bus unit is connected with the joint assembly.

Compared with the prior art, the utility model has the following beneficial effects:

the utility model provides a heightening device which comprises an outer sleeve and a conductive component, wherein the outer sleeve mainly comprises a first outer sleeve section and a second outer sleeve section, the first outer sleeve section is used for being fixed with a cable connector, the conductive component is used for being electrically connected with the cable connector so as to achieve the purpose of through flow, the conductive component is at least partially positioned on the second outer sleeve section so as to form a heightening device connector protruding out of the cable connector, a bus connector can be connected to the heightening device connector, and by configuring heightening devices with different axial dimensions, staggered layout of each phase of bus units in the axial direction can be realized, the space of a cabinet body of a ring main unit is optimized and utilized, and the space utilization rate is improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic illustration of a joint assembly provided in accordance with one embodiment of the present utility model;

FIG. 2 is an exploded view of the joint assembly of FIG. 1;

FIG. 3 is a cross-sectional view of the joint assembly of FIG. 1;

fig. 4 is a schematic view of a conductive rod according to one embodiment of the present utility model.

Reference numerals

100. A height increasing device;

110. an outer sleeve; 111. a first jacket tube segment; 1111. a mounting section; 1112. a limiting section; 112. a second outer jacket pipe section;

120. a conductive assembly; 121. a conductive rod; 122. a connecting piece; 130. a shielding cylinder; 140. a buckle;

A. a clamping groove;

200. and a cable connector.

Detailed Description

To further clarify the above and other features and advantages of the present utility model, a further description of the utility model will be rendered by reference to the appended drawings. It should be understood that the specific embodiments presented herein are for purposes of explanation to those skilled in the art and are intended to be illustrative only and not limiting.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

As mentioned above, the ring main unit is a high voltage device, and is typically connected with three-phase high voltage power. In this disclosure, the looped netowrk cabinet includes first looks generating line unit, second looks generating line unit, third phase generating line unit and joint component, with being connected with three-phase high voltage power supply through the combination mode of generating line unit and joint component.

It should be noted that each phase bus unit includes at least one bus body and at least two bus joints, and the tip of bus body all is connected with the bus joint, and the bus joint can install on the joint assembly to realize linking to each other each phase bus unit and joint assembly.

Referring to fig. 1 to 3, in the present disclosure, a joint assembly includes an elevating device 100 and a cable joint 200. In a specific application, the cable connector 200 is disposed on a cabinet body of the ring main unit and is connected with an electrical component in the ring main unit. Note that the bus bar connector can be directly connected to the cable connector 200.

Further, the booster 100 includes an outer sleeve 110 and a conductive component 120, the outer sleeve 110 includes a first outer sleeve section 111 and a second outer sleeve section 112, the first outer sleeve section 111 is sleeved on the cable joint 200, the second outer sleeve section 112 is connected to the first outer sleeve section 111 and protrudes from the cable joint 200, and at least part of the conductive component 120 is disposed in the second outer sleeve section 112 and is electrically connected with the cable joint 200. So configured, the second housing section 112 in combination with the conductive assembly 120 forms an booster fitting that protrudes from the cable tie 200, and the busbar joint can also be connected to the booster fitting.

In other words, the booster 100 is added to the cable joint 200, and the switching bus bar joint is realized by the booster 100, thereby changing the installation axial position of the bus bar unit.

It should be noted that, in a specific application, in order to achieve the adaptation with each phase bus unit, the joint assembly at least includes a first phase joint assembly and a second phase joint assembly, and the number of each phase joint assembly is multiple, so as to connect with multiple bus joints in the corresponding phase bus unit in a one-to-one correspondence manner.

As mentioned above, the busbar joint may be directly connected to the cable joint 200, and in a preferred embodiment, each busbar joint in the third phase busbar unit is connected to the cable joint 200, and each busbar joint in the second phase busbar unit is connected to the corresponding first phase joint assembly and the second phase joint assembly. The axial dimension of the heightening device 100 in the first phase joint assembly is different from the axial dimension of the heightening device 100 in the second phase joint assembly, so that each phase bus unit can be arranged in an axial staggered manner, the cabinet body space of the ring main unit is optimized, and the space utilization rate is improved. It can be appreciated that, in the case where the cable connector 200 and the booster 100 are vertically arranged, each phase of bus bar units may be arranged in a staggered manner in the height direction, and the cable connector 200 and the booster 100 are not limited to the vertical arrangement.

In another alternative embodiment, the joint assembly further includes a plurality of third phase joint assemblies, each of the busbar joints in the first phase busbar unit, each of the busbar joints in the second phase busbar unit, and each of the busbar joints in the third phase busbar unit are connected in one-to-one correspondence with the first phase joint assembly, the second phase joint assembly, and the third phase joint assembly, and the axial dimensions of the height increaser 100 in the first phase joint assembly, the axial dimensions of the height increaser 100 in the second phase joint assembly, and the axial dimensions of the height increaser 100 in the third phase joint assembly are all different, thereby implementing a staggered layout of the three phase busbar units. In other words, in the present embodiment, the three-phase busbar units are all connected to the cable joint 200 through the booster 100. In the present embodiment, since the booster 100 is additionally provided to one of the phase cable connectors 200, the cost thereof increases accordingly.

It can be seen that at least one of the first phase bus bar unit, the second phase bus bar unit, and the third phase bus bar unit is connected to the joint assembly. It should be noted that, the booster 100 is not limited to be applied to the ring main unit, but may be applied to other high-voltage cabinet devices, which is not illustrated herein.

In the present disclosure, the conductive assembly 120 includes a conductive rod 121 and a connection member 122, the connection member 122 is connected to the conductive rod 121, and the conductive rod 121 is electrically connected to the cable connector 200 through the connection member 122. Specifically, the conductive rod 121 is disposed in the second outer casing section 112 and at least a portion of the connector 122 extends into the first outer casing section 111 for connection to the cable connector 200.

In a specific application, the conductive component 120 is formed by assembling the conductive rod 121 and the connecting member 122 along the axial direction, and in an alternative embodiment, two ends of the connecting member 122 are respectively provided with threads to be connected with the conductive rod 121 and the cable connector 200 respectively. Preferably, the connecting member 122 is a double-ended thread, although not limited thereto. It will be appreciated that the conductive rod 121 and the connecting member 122 are both made of conductive metal, and in order to ensure good conductive performance, the conductive rod 121 is preferably a copper alloy rod.

Further, the booster 100 further includes a buckle 140, where the buckle 140 is clamped to the conductive rod 121. One end of the conductive rod 121 is connected with the cable connector 200 through the connecting piece 122, so that fixation is achieved, further, the buckle 140 abuts against the axial end portion of the second outer sleeve section 112 under the action of the conductive rod 121, the other end of the conductive rod 121 is fixed through the buckle 140, the shaking risk of the conductive assembly 120 is reduced, and connection stability is guaranteed. As can be seen, the catch 140 is arranged to abut against an axial end of the second casing section 112 when the conductive assembly 120 is connected with the cable joint 200 to secure an end of the conductive assembly 120 remote from the first casing section 111.

Referring to fig. 4, in a specific application, a clamping groove a is formed on the outer peripheral side of the conductive rod 121, and at least a portion of the buckle 140 is embedded in the clamping groove a, so as to realize the clamping of the buckle 140 to the conductive rod 121. In an alternative embodiment, the clamping groove a is annular, and the buckle 140 is annular or a U-shaped structure, and it should be noted that the U-shaped structure includes a U-shaped structure, such as a horseshoe-shaped structure, an arch-shaped structure, and the like. In another alternative embodiment, the clamping groove a has a U-shaped structure, and the buckle 140 has a U-shaped structure.

In the present disclosure, the booster 100 further includes a shielding cylinder 130, where the shielding cylinder 130 is sleeved on the conductive rod 121 and is located between the conductive rod 121 and the outer sleeve 110, and the shielding cylinder 130 abuts against the buckle 140 in the axial direction. By additionally arranging the shielding cylinder 130, the heightening device joint has better uniform internal potential field, and the partial discharge performance of the product is improved. In a specific application, the aluminum alloy barrel of the shield barrel 130 is of course not limited thereto.

It can be seen that the buckle 140 not only can play a role in fixing the conductive component 120, but also can play a role in fixing the shielding cylinder 130, so as to prevent the shielding cylinder 130 from falling off. In a specific application, the clip 140 is made of conductive metal. It should be noted that, the outer sleeve 110 is made of an insulating material, such as rubber, and the shielding barrel 130 is located at the connector of the height increaser, so that the shielding barrel 130 can improve the structural strength of the connector of the height increaser and avoid deformation in the plugging process.

Referring to fig. 3, a limiting protrusion is formed on an inner wall of the first outer casing section 111 in a protruding manner along a radial direction, and the limiting protrusion has a first limiting surface and a second limiting surface in an axial direction. The first limiting surface is used for abutting against the shielding cylinder 130, and the second limiting surface is used for abutting against the cable connector 200. The installation position of the cable connector 200 and the installation position of the shield can 130 are determined by the limit boss.

In a specific application, the first outer casing section 111 is aligned with the cable connector 200 and is inserted into the cable connector 200 until the outer casing 110 cannot move further, and the cable connector 200 abuts against the second limiting surface; next, the connector 122 is placed in the outer sleeve 110 and connected with the cable connector 200; then, the shielding cylinder 130 is put into the outer sleeve 110 until the shielding cylinder 130 is abutted against the first limiting surface; then, the buckle 140 is aligned with the axial end of the second outer sleeve segment 112, and one end of the conductive rod 121 is inserted into the outer sleeve 110 to be connected with the connecting piece 122 until the other end of the conductive rod 121 is pressed against the buckle 140, thereby completing the installation.

Further, the first outer casing section 111 includes a mounting section 1111 and a limiting section 1112, the limiting section 1112 is disposed between the mounting section 1111 and the second outer casing section 112, the mounting section 1111 is used for being sleeved on the cable connector 200, and the limiting section 1112 is provided with a limiting protrusion. In the present disclosure, the first outer casing section 111 is mainly composed of a mounting section 1111 and a limiting section 1112, the mounting section 1111 is connected with the cable connector 200, and the limiting section 1112 is provided with a limiting protrusion to perform a limiting function, and the axial dimension of the entire height-increasing device 100 is changed by providing the limiting section 1112 with different axial dimensions.

It will be appreciated that when the axial dimension of the booster 100 is changed, the axial dimension of the internal components, mainly the conductive component 120, needs to be changed in addition to the axial dimension of the outer sleeve 110, and the conductive component 120 having different axial dimensions can be adapted according to practical situations.

In an alternative embodiment, the inner diameter of the first casing section 111 tapers in the axial direction in a direction approaching the second casing section 112. It will be appreciated that the inner peripheral wall of the first outer casing section 111 is connected to the cable connector 200, and then, as described above, the outer casing 110 is generally made of insulating rubber, so that the outer casing 110 can be deformed, thereby implementing an interference fit with the cable connector 200, and the inner cavity of the first outer casing section 111 is configured to have a shape with one large end and the other small end, so that the inner cavity is more easily butt-mounted.

In an alternative embodiment, the outer diameter of the second outer casing section 112 tapers in the axial direction in a direction away from the first outer casing section 111. The arrangement is easy to realize interference fit with the bus connector, and the butt joint installation is convenient.

In a preferred embodiment, the inner diameter of the first casing section 111 tapers in the axial direction in a direction towards the second casing section 112, and the outer diameter of the second casing section 112 tapers in the axial direction in a direction away from the first casing section 111.

In the present disclosure, the cable connector 200, the connector 122, the outer sleeve 110, the conductive rod 121, and the shielding cylinder 130 are all in a columnar structure and are coaxially disposed.

Further, it should be understood by those skilled in the art that if all or part of the sub-modules involved in each product provided by the embodiments of the present utility model are combined, replaced by fusion, simple variation, mutual transformation, etc., such as each component being placed in a moving position; or the products formed by the two are integrally arranged; or a removable design; it is within the scope of the present utility model to replace the corresponding components of the present utility model with devices/apparatuses/systems that may be combined to form a device/apparatus/system having a specific function.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims (10)

1. An height-increasing device, characterized in that the height-increasing device (100) comprises an outer sleeve (110) and a conductive component (120);

the outer sleeve (110) comprises a first outer sleeve section (111) and a second outer sleeve section (112), the first outer sleeve section (111) is used for being sleeved on the cable joint (200), and the second outer sleeve section (112) is connected to the first outer sleeve section (111) and protrudes out of the cable joint (200);

at least a portion of the conductive assembly (120) is disposed within the second outer housing tube segment (112) and is configured for electrical connection with the cable connector (200).

2. The booster according to claim 1, wherein,

the conductive assembly (120) comprises a conductive rod (121) and a connecting piece (122), wherein the connecting piece (122) is connected to the conductive rod (121);

the conductive rod (121) is arranged in the second outer sleeve section (112), and at least part of the connecting piece (122) extends into the first outer sleeve section (111) to be connected with the cable connector (200).

3. The booster according to claim 2, wherein,

the height increaser (100) further comprises a buckle (140), and the buckle (140) is clamped to the conductive rod (121);

the clasp (140) is arranged to abut against an axial end of the second outer casing section (112) when the conductive assembly (120) is connected to the cable joint (200) to secure an end of the conductive assembly (120) remote from the first outer casing section (111).

4. The height-increasing machine according to claim 3, wherein the outer peripheral side of the conductive rod (121) is provided with a clamping groove (a), and at least part of the buckle (140) is embedded in the clamping groove (a).

5. The height-increasing machine according to claim 3, wherein the height-increasing machine (100) further comprises a shielding cylinder (130), the shielding cylinder (130) is sleeved on the conductive rod (121) and located between the conductive rod (121) and the outer sleeve (110), and the shielding cylinder (130) is abutted to the buckle (140) in the axial direction.

6. The booster according to claim 5, wherein,

a limiting protrusion is formed on the inner wall of the first outer sleeve pipe section (111) in a protruding mode along the radial direction, and the limiting protrusion is provided with a first limiting surface and a second limiting surface in the axial direction;

the first limiting surface is used for being abutted with the shielding cylinder (130), and the second limiting surface is used for being abutted with the cable connector (200).

7. The height-increasing machine according to claim 6, wherein the first outer sleeve section (111) comprises a mounting section (1111) and a limiting section (1112), the limiting section (1112) is arranged between the mounting section (1111) and the second outer sleeve section (112), the mounting section (1111) is used for being sleeved on the cable connector (200), and the limiting section (1112) is provided with the limiting protrusion.

8. The booster according to claim 1, wherein,

the inner diameter of the first outer sleeve section (111) is gradually reduced along the direction approaching the second outer sleeve section (112) in the axial direction; and/or

The outer diameter of the second casing section (112) tapers in the axial direction in a direction away from the first casing section (111).

9. A joint assembly comprising a cable joint (200) and an enhancer (100) according to any one of claims 1 to 8, the first casing section (111) being sleeved on the cable joint (200), the conductive assembly (120) being electrically connected to the cable joint (200).

10. A ring main unit comprising a first phase bus unit, a second phase bus unit, a third phase bus unit, and the joint assembly of claim 9, wherein at least one of the first phase bus unit, the second phase bus unit, and the third phase bus unit is connected to the joint assembly.