CN217469131U - Ring main unit extension branch high-voltage bus connector - Google Patents

Abstract

The utility model discloses a ring main unit extension branch high-voltage bus connector, which comprises a conductive assembly, two insulating sleeves and a ground wire; two ends of the conductive assembly are respectively detachably connected to the two insulating sleeves; the ground wire is arranged on the conductive component and is electrically connected with a ground end; the conductive assembly comprises a sleeve, a conductive rod and two spring contact fingers; the sleeve has insulating and shielding performance, the conducting rod is arranged in the sleeve, the two spring contact fingers are respectively arranged on two sides of the conducting rod and are respectively electrically connected with the conducting rod, and the spring contact fingers have elasticity. The utility model discloses can realize the quick reliable electrical connection function between looped netowrk cabinet and the cabinet effectively.

Description

Ring main unit extension branch high-voltage bus connector

Technical Field

The utility model relates to a power cable accessory technical field especially relates to a looped netowrk cabinet extension branch high voltage bus connector.

Background

At present, a bus connector is required to be used for connecting the ring main unit between the ring main unit and the cabinet, so that the ring main unit can be expanded in any connection combination mode, the connection part of the ring main unit is fully shielded, fully insulated, fully sealed and fully protected, the structure is compact, the expansibility is excellent, and the ring main unit has excellent insulating property and through-current capacity. However, the existing bus connector has the following problems: firstly, the structure is relatively complex, which leads to the increase of cost; secondly, the installation is difficult, and the assembly wastes time and labor; 3. poor conductive contact is easily generated, and equipment damage may be caused. Therefore, in view of the defects of the above solutions in actual manufacturing and implementation and use, the present invention provides a ring main unit extension branch high voltage bus connector, which is modified and improved, and is based on the acquired spirit and concept, assisted by professional knowledge and experience, and after multiple skillful thinking and experiments, the present invention is created, so as to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a looped netowrk cabinet extension branch high voltage bus connector to in the solution foretell problem.

The utility model relates to a looped netowrk cabinet extension branch high voltage bus connector can realize through following technical scheme:

the utility model relates to a ring main unit extension branch high-voltage bus connector, which comprises a conductive assembly, two insulating sleeves and a ground wire; two ends of the conductive assembly are respectively detachably connected to the two insulating sleeves; the ground wire is arranged on the conductive component and is electrically connected with a ground end; the conductive assembly comprises a sleeve, a conductive rod and two spring contact fingers; the sleeve has insulating and shielding performance, the conducting rod is arranged in the sleeve, the two spring contact fingers are respectively arranged on two sides of the conducting rod and are respectively electrically connected with the conducting rod, and the spring contact fingers have elasticity.

In one embodiment, the sleeve comprises an outer shielding layer, an insulating layer and an inner shielding layer, which are arranged from outside to inside in sequence, and the inner shielding layer surrounds the conducting rod.

In one embodiment, the inner shielding layer and the outer shielding layer are respectively disposed on the inner side and the outer side of the insulating layer by a spraying process.

In one embodiment, the sleeve is externally tapered for stress relief.

In one embodiment, when the conductive assembly is coupled to the insulative sleeve, the insulative layer is tightly coupled to the insulative sleeve.

In one embodiment, the insulating layer is made of rubber.

In one embodiment, the insulating sleeve is made of epoxy resin.

In one embodiment, the spring fingers are provided with a silver coating.

Compared with the prior art, the utility model relates to a looped netowrk cabinet extension branch high voltage bus connector's beneficial effect does:

the utility model relates to a looped netowrk cabinet extension branch high voltage bus connector can dismantle through conductive component and connect on two insulation sleeves, has realized effectively that electrical connection between looped netowrk cabinet and the cabinet has the characteristics of simple to operate; the inner shielding layer and the outer shielding layer are respectively sprayed on the inner side and the outer side of the insulating layer, so that gaps between the layers are effectively avoided, and the occurrence of partial discharge is reduced to the maximum extent; the spring contact fingers are arranged at the two ends of the conductive rod respectively, so that the conductive rod of the ring main unit is tightly and electrically connected with the conductive rod in the conductive assembly, the contact area is greatly increased, the through-current capacity of the conductive rod is effectively enhanced, and the problem that a bus connector in the prior art is prone to poor conductive contact is solved; simultaneously the utility model has the characteristics of simple structure and cost are lower.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic cross-sectional structure view of an extended branch high-voltage bus connector of a ring main unit according to the present invention;

fig. 2 is a schematic diagram showing a separating structure of the ring main unit extension branch high-voltage bus connector shown in fig. 1;

fig. 3 is a schematic diagram of fig. 1 illustrating a structure of a conductive component in an extended branch high-voltage bus connector of a ring main unit.

The following are marked in the figure: 11, a conductive component; 111, a sleeve; 1111, an outer shield layer, 1112, an insulating layer; 1113, inner shield layer; 112, a conductive rod; 113, spring fingers; 12, an insulating sleeve; 13, ground wire.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of the embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "upper" and "lower" are used for indicating the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of describing the present invention and simplifying the description, but not for indicating or implying that the indicated device or element must have a specific position, be constructed and operated in a specific position, and thus should not be construed as limiting the present invention.

Further, in the present disclosure, unless otherwise expressly stated or limited, the first feature may comprise both the first and second features directly contacting each other, and also may comprise the first and second features not being directly contacting each other but being in contact with each other by means of further features 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.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather 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 description of the present invention, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "connected" and "connected" should be broadly construed, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, the present invention provides an extended branch high voltage bus connector of a ring main unit, which mainly includes a conductive component 11, two insulating sleeves 12 and a ground wire 13; the two insulating sleeves 12 are respectively and symmetrically arranged on two sides of the conductive component 11; two ends of the conductive component 11 are respectively detachably connected to the corresponding insulating sleeves 12; the ground wire 13 is disposed on the conductive member 11, and is electrically connected to a ground terminal.

Referring to fig. 2, in the present embodiment, the conductive assembly 11 includes a sleeve 111, a conductive rod 112 and two spring fingers 113; the sleeve 111 has insulating and shielding properties, and the conductive rod 112 is disposed in the sleeve 111; the two spring contact fingers 113 are respectively arranged on two sides of the conducting rod 112 and are respectively electrically connected with the conducting rod 112, the spring contact fingers 113 have elasticity, so that the conducting rod 112 can be tightly connected with the conducting rod extending into the insulating sleeve 12, contact pressure is increased through the spring contact fingers 113, contact area is increased, the current capacity of the conducting rod 112 is effectively enhanced, and heating is reduced. In the present embodiment, the sleeve 111 includes an outer shield layer 1111, an insulating layer 1112, and an inner shield layer 1113, the outer shield layer 1111, the insulating layer 1112, and the inner shield layer 1113 are sequentially disposed from outside to inside, and the inner shield layer 1113 surrounds the conductive rod 112; the outer shielding layer 1111 and the inner shielding layer 1113 are respectively arranged on the outer side and the inner side of the insulating layer 1112 through a spraying process, so that gaps between the layers are effectively avoided, and the occurrence of partial discharge is reduced to the maximum extent. In this embodiment, the sleeve 111 adopts an external cone type stress evacuation manner, which can effectively evacuate stress at the connection position of the conductive rod 112, thereby ensuring safe operation of the product.

Referring to fig. 1, in the embodiment, when the conductive element 11 is connected to the insulating sleeve 12, the insulating layer 1112 is tightly connected to the insulating sleeve 12, so as to greatly protect the performance of the conductive rod 112 from being affected by external environmental factors. In this embodiment, the insulating layer 1112 is made of rubber; the insulating sleeve 12 is made of epoxy resin. In this embodiment, the spring contact fingers 113 are provided with a silver coating, which enhances the electrical conductivity of the spring contact fingers 113.

It should be noted that, the ring main unit extension branch high-voltage bus connector of the present invention is detachably connected to the two insulating sleeves 12 through the conductive assembly 11, so that the electrical connection between the ring main unit and the ring main unit is effectively realized; the inner shielding layer 1113 and the outer shielding layer 1111 are respectively sprayed on the inner side and the outer side of the insulating layer 1112, so that the gap between the layers is effectively avoided, and the occurrence of partial discharge is reduced to the maximum extent; through the arrangement of the spring contact finger 113, the conducting rod of the ring main unit is tightly and electrically connected with the conducting rod 112 in the conducting component 11.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (8)

1. A high-voltage bus connector of an expanded branch of a ring main unit is characterized by comprising a conductive assembly, two insulating sleeves and a ground wire; two ends of the conductive assembly are detachably connected to the two insulating sleeves respectively; the ground wire is arranged on the conductive component and is electrically connected with a ground end; the conductive assembly comprises a sleeve, a conductive rod and two spring contact fingers; the sleeve has insulating and shielding performance, the conducting rod is arranged in the sleeve, the two spring contact fingers are respectively arranged on two sides of the conducting rod and are respectively electrically connected with the conducting rod, and the spring contact fingers have elasticity.

2. The ring main unit extension branch high-voltage bus connector as claimed in claim 1, wherein the sleeve comprises an outer shielding layer, an insulating layer and an inner shielding layer, which are sequentially arranged from outside to inside, and the inner shielding layer surrounds the conducting rod.

3. The expanded branch high-voltage bus connector of the ring main unit as claimed in claim 2, wherein the inner shielding layer and the outer shielding layer are respectively disposed on the inner side and the outer side of the insulating layer by a spraying process.

4. The ring main unit extension branch high-voltage bus connector as claimed in claim 2, wherein the sleeve is in an outward-tapered stress evacuation manner.

5. The ring main unit extended branch high-voltage bus connector as claimed in claim 2, wherein when the conductive assembly is connected to the insulating sleeve, the insulating layer is tightly connected to the insulating sleeve.

6. The ring main unit extension branch high-voltage bus connector as claimed in claim 2, wherein the insulating layer is made of rubber.

7. The ring main unit extension branch high-voltage bus connector as claimed in claim 1, wherein the insulating sleeve is made of epoxy resin.

8. The ring main unit extension branch high-voltage bus connector as claimed in any one of claims 1 to 7, wherein the spring contact fingers are provided with a silver coating.

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