CN212304031U

CN212304031U - Aerify cabinet generating line adapter sleeve

Info

Publication number: CN212304031U
Application number: CN202021228486.1U
Authority: CN
Inventors: 叶钦赐; 章楷; 叶生忠
Original assignee: Xiamen Yesheng Electric Co ltd
Current assignee: Xiamen Yesheng Electric Co ltd
Priority date: 2020-06-29
Filing date: 2020-06-29
Publication date: 2021-01-05
Anticipated expiration: 2030-06-29

Abstract

The utility model relates to a bus connecting sleeve of an inflatable cabinet, which comprises an insulating shell and an electric conductor, wherein the insulating shell comprises an end surface part, an umbrella skirt part and an isolating part, the end surface part and the umbrella skirt part form a conical cavity, the end surface part and the isolating part form a rectangular cavity, the middle part of the end surface part is also provided with a fixed column extending into the conical cavity, and the middle part of the fixed column is also provided with a through hole; the opening end surface of the umbrella skirt part is provided with an annular mounting part, and the free end surface of the annular mounting part is provided with a plurality of mounting holes; one end of the electric conductor is fixed in the through hole, and the other end of the electric conductor extends into the conical cavity of the insulating shell; the insulating shell is also provided with a plurality of insulating bulges which are arranged on the peripheral surface of the umbrella skirt part in a surrounding way and are convexly arranged along the radial direction so as to solve the problem of small creepage distance of the existing bus connecting sleeve.

Description

Aerify cabinet generating line adapter sleeve

Technical Field

The utility model relates to an electrical equipment field specifically is a aerify cabinet generating line adapter sleeve.

Background

The inflatable cabinet is characterized in that each high-voltage electrical appliance functional unit is installed in a sealed box body, and insulating gas is filled in the box body, so that the inflatable cabinet can safely and reliably operate under severe environmental conditions. The bus connecting sleeve in the gas-filled cabinet is used as a fitting for connecting the bus of the gas-filled cabinet, and is an important medium for transition from the gas-insulated bus of the gas-filled cabinet to the air-insulated bus. The shell of the conventional bus connecting sleeve is mostly smooth, so that the creepage distance of the contact end surface arranged in the sleeve to the grounded cabinet body is small, and the bus connecting sleeve can only be suitable for a small part of insulating gas inflatable cabinets.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an aerify cabinet generating line adapter sleeve to solve the current little problem of generating line adapter sleeve creepage distance.

The specific scheme is as follows:

a bus connecting sleeve of an inflatable cabinet comprises an insulating shell and an electric conductor, wherein the insulating shell comprises an end face part, an annular umbrella skirt part and an annular isolating part, the annular umbrella skirt part extends from the periphery of the end face part to the axial direction of the end face part, the annular isolating part extends from the periphery of the end face part to the direction away from the umbrella skirt part, a conical cavity with the end face part as a closed end and the free end of the umbrella skirt part as an open end is formed by the end face part and the umbrella skirt part, and the inner diameter of the conical cavity is gradually increased from the closed end to the open end; the end surface part and the isolation part form a rectangular cavity with the end surface part as a closed end and the free end of the isolation part as an open end; the middle part of the end surface part is also provided with a fixing column extending into the conical cavity, and the middle part of the fixing column is also provided with a through hole axially penetrating through the fixing column and the end surface part; the opening end surface of the umbrella skirt part is provided with an annular mounting part, and the free end surface of the annular mounting part is provided with a plurality of mounting holes; one end of the electric conductor is fixed in the through hole to form a fixed end, and the fixed end is provided with a connecting hole arranged along the axial direction of the fixed end; the other end of the electric conductor extends into the conical cavity of the insulating shell to form a contact end; the insulating shell is further provided with a plurality of insulating bulges which are arranged on the outer peripheral surfaces of the umbrella skirt portion and the isolating portion in a surrounding mode and are arranged in a protruding mode along the radial direction, each insulating bulge comprises a plurality of first insulating bulges and a plurality of second insulating bulges, the protruding height of each second insulating bulge is smaller than that of each first insulating bulge, and each second insulating bulge is arranged between every two adjacent first insulating bulges.

Further, the vertical distance between the top of the first insulating protrusion and the axis of the end surface portion gradually increases from the end surface portion toward the opening end.

Furthermore, a plurality of the first insulating protrusions are arranged along a first taper, the taper of the tapered cavity is a second taper, and the first taper is larger than the second taper.

Furthermore, the plurality of second insulating bulges are arranged in a conical shape, and the conical degree of the second insulating bulges is the same as that of the first insulating bulges.

Furthermore, a first annular groove which is concavely arranged along the radial direction of the annular mounting part is arranged on the outer peripheral surface of the annular mounting part.

Furthermore, a second annular groove located on the outer side of the mounting hole is formed in the free end face of the annular mounting portion.

Further, have the annular groove that a plurality of intervals set up on the periphery wall of electric conductor stiff end, have on the internal perisporium of through-hole with a plurality of annular archs of annular groove phase-match setting, annular arch stretches into to the annular groove that corresponds in.

The utility model provides an aerify cabinet generating line adapter sleeve compares with prior art and has following advantage: the utility model provides an aerify cabinet generating line adapter sleeve's electric conductor's contact end is located the toper cavity to a plurality of insulation protrusion that the height dislocation set up has been increased on insulating casing, greatly increased the creepage distance of the cabinet body that the contact terminal pair of electric conductor grounded, make this aerify cabinet generating line adapter sleeve can be applicable to the cabinet of aerifing of multiple gas, greatly increased its adaptability.

Drawings

Fig. 1 shows a schematic perspective view of a gas-filled cabinet busbar connection sleeve.

Figure 2 shows a schematic cross-sectional view of a gas-filled cabinet busbar connection sleeve.

Detailed Description

To further illustrate the embodiments, the present invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. With these references, one of ordinary skill in the art will appreciate other possible embodiments and advantages of the present invention. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.

The present invention will now be further described with reference to the accompanying drawings and detailed description.

As shown in fig. 1-2, the present embodiment provides a gas-filled cabinet busbar connection sleeve, which comprises an insulating housing 1 and an electrical conductor 2.

The insulating housing 1 includes an end surface portion 10, an annular skirt portion 11 extending from the periphery of the end surface portion 10 in an axial direction of the end surface portion 10, and an annular partition portion 12 extending from the periphery of the end surface portion 10 in the axial direction of the end surface portion 10 and in a direction away from the skirt portion 11.

The end surface portion 10 and the skirt portion 11 form a tapered cavity 100 having the end surface portion 10 as a closed end and a free end of the skirt portion 11 as an open end, the tapered cavity 100 has a tapered cross section in the axial direction, and the inner diameter of the tapered cavity 100 gradually increases from the closed end toward the open end. The middle part of the end surface part 10 is also provided with a fixing column 101 extending into the conical cavity 100, and the middle part of the fixing column 101 is also provided with a through hole 102 axially penetrating through the fixing column 101 and the end surface part 10. An annular mounting portion 110 is provided at the open end of the skirt portion 11, and a plurality of mounting holes 111 are provided at the free end of the annular mounting portion 110.

The end surface portion 10 and the partition portion 12 form a rectangular cavity 120 having the end surface portion 10 as a closed end and the free end of the partition portion 12 as an open end, and the rectangular cavity 120 has a rectangular cross section in the axial direction.

The body of the electrical conductor 2 is a cylinder, and one end of the electrical conductor 2 is fixed in the through hole 102 to form a fixed end, and the fixed end is provided with a connecting hole 21 arranged along the axial direction. The other end of the electrical conductor 2 extends into the conical cavity 100 of the insulating housing 1 to form a contact end.

The insulating housing 1 is further provided with a plurality of insulating protrusions 13 which are arranged around the outer circumferential surfaces of the skirt portion 11 and the partition portion 12 and are protruded in the radial direction, the insulating protrusions 13 include a plurality of first insulating protrusions 131 and a plurality of second insulating protrusions 132, wherein the protrusion height of the second insulating protrusions 132 is smaller than the protrusion height of the first insulating protrusions 131, and the second insulating protrusions 132 are arranged between two adjacent first insulating protrusions 131.

The contact end of the electric conductor 2 of the bus connecting sleeve of the gas-filled cabinet provided by the embodiment is positioned in the conical cavity 100, the fixed end is positioned in the rectangular cavity, a plurality of insulating protrusions 13 with staggered heights are additionally arranged on the insulating shell 1, the creepage distance of the cabinet body with the grounding end of the electric conductor 2 is greatly increased, the bus connecting sleeve of the gas-filled cabinet can be suitable for gas-filled cabinets with various gases, and the adaptability of the bus connecting sleeve of the gas-filled cabinet is greatly increased.

In the present embodiment, the vertical distance between the top of the first insulating protrusion 131 and the axis of the end surface portion 10 gradually increases from the end surface portion 10 to the opening end, that is, the first insulating protrusions 131 are arranged in a tapered manner to further increase the creepage distance.

Preferably, the plurality of first insulating protrusions 131 are disposed along a first taper, and the taper of the tapered cavity 100 is a second taper, wherein the first taper is greater than the second taper to further increase the creepage distance. For example, the second taper of the tapered cavity 100 in this embodiment is 11 °, and the first taper of the first insulating protrusion is 20 °.

Preferably, the plurality of second insulating protrusions 132 are also arranged in a tapered shape, and the taper of the second insulating protrusions is the same as that of the first insulating protrusions 131.

In the present embodiment, a first annular groove 112 is further provided on the outer circumferential surface of the annular mounting portion 110, and the first annular groove 112 is recessed along the radial direction thereof, and the creepage distance can be further increased by the first annular groove 112.

Preferably, a second annular groove 113 is disposed on the free end surface of the annular mounting portion 110, and the second annular groove 113 is used for mounting an annular sealing ring, so as to achieve sealing between the cabinet body and the bus bar connecting sleeve.

In this embodiment, the outer peripheral wall of the fixed end of the electrical conductor 2 has a plurality of annular grooves 22 arranged at intervals, the inner peripheral wall of the through hole 102 has a plurality of annular protrusions 103 arranged to match with the annular grooves 22, and the annular protrusions 103 extend into the corresponding annular grooves 22, so as to increase the stability of the fixation between the electrical conductor 2 and the insulating housing 1.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides an aerify cabinet generating line adapter sleeve, includes insulating casing and electric conductor, its characterized in that: the insulating shell comprises an end surface part, an annular umbrella skirt part and an annular isolating part, wherein the annular umbrella skirt part extends from the peripheral edge of the end surface part to the axial direction of the end surface part, the annular isolating part extends from the peripheral edge of the end surface part to the direction departing from the umbrella skirt part, a conical cavity with the end surface part as a closed end and the free end of the umbrella skirt part as an open end is formed by the end surface part and the umbrella skirt part, and the inner diameter of the conical cavity is gradually increased from the closed end to the open end; the end surface part and the isolation part form a rectangular cavity with the end surface part as a closed end and the free end of the isolation part as an open end; the middle part of the end surface part is also provided with a fixing column extending into the conical cavity, and the middle part of the fixing column is also provided with a through hole axially penetrating through the fixing column and the end surface part; the opening end surface of the umbrella skirt part is provided with an annular mounting part, and the free end surface of the annular mounting part is provided with a plurality of mounting holes; one end of the electric conductor is fixed in the through hole to form a fixed end, and the fixed end is provided with a connecting hole arranged along the axial direction of the fixed end; the other end of the electric conductor extends into the conical cavity of the insulating shell to form a contact end; the insulating shell is further provided with a plurality of insulating bulges which are arranged on the outer peripheral surfaces of the umbrella skirt portion and the isolating portion in a surrounding mode and are arranged in a protruding mode along the radial direction, each insulating bulge comprises a plurality of first insulating bulges and a plurality of second insulating bulges, the protruding height of each second insulating bulge is smaller than that of each first insulating bulge, and each second insulating bulge is arranged between every two adjacent first insulating bulges.

2. The gas insulated cabinet busbar adapter sleeve of claim 1, wherein: the vertical distance between the top of the first insulating protrusion and the axis of the end surface part gradually increases from the end surface part to the opening end.

3. The gas insulated cabinet busbar adapter sleeve of claim 2, wherein: the first insulating bulges are arranged along a first taper, the taper of the tapered cavity is a second taper, and the first taper is larger than the second taper.

4. The gas insulated cabinet busbar adapter sleeve of claim 3, wherein: the second insulating bulges are distributed in a conical shape, and the conical degree of the second insulating bulges is the same as that of the first insulating bulges.

5. The gas insulated cabinet busbar adapter sleeve of claim 1, wherein: the outer peripheral surface of the annular mounting part is provided with a first annular groove which is sunken along the radial direction of the annular mounting part.

6. The gas insulated cabinet busbar adapter sleeve of claim 1, wherein: and a second annular groove positioned on the outer side of the mounting hole is arranged on the free end face of the annular mounting part.

7. The gas insulated cabinet busbar adapter sleeve of claim 1, wherein: have the annular groove that a plurality of intervals set up on the periphery wall of electric conductor stiff end, have on the internal perisporium of through-hole with a plurality of annular archs of annular groove phase-match setting, annular arch stretches into to the annular groove that corresponds in.