Bus socket and normal-pressure switch cabinet

Abstract

The utility model relates to a bus socket and a normal pressure switch cabinet, an isolation switch device in a cabinet body is arranged above a vacuum switch unit, the bus socket comprises an insulator and a central conductor, the insulator is provided with a plugging port and a second end portion, the central conductor comprises a plugging conductive rod correspondingly arranged in the plugging port, and the second end portion is provided with a second end portion. The plug-in conducting rod is connected with an electric connecting piece, the electric connecting piece is provided with an electric connecting portion corresponding to the second end portion, the insulator comprises a plug-in seat portion with a plug-in port formed in one end, a 7-shaped connecting lever is integrally formed on one transverse side of the plug-in seat portion and comprises a lateral protruding portion protruding on the transverse side wall of the plug-in seat portion, and the plug-in seat portion is provided with a plug-in port formed in the other end of the plug-in seat portion. The end part of the longitudinal handle part forms a second end part, the longitudinal handle part extends along the direction opposite to the direction of the plugging port, the second end part on the longitudinal handle part is longer than the end part of the plugging seat part, and the longitudinal handle part of the bus socket extends to an electric connection end at the top of the disconnecting switch device and is electrically connected with the electric connection end. The bus socket is reasonable in structural design and convenient to install and use.

Description

TECHNICAL FIELD

[0001] The utility model relates to bus socket and normal pressure switch cabinet. BACKGROUND

[0002] Normal pressure switch cabinet refers to the switch cabinet (i.e. non-sealed, non-inflatable structure) whose internal pressure is consistent with the atmospheric pressure. With the implementation of the new normal pressure switch cabinet standard of the State Grid (issued and implemented in 2023, mainly aiming at the design, test and acceptance of normal pressure sealed air insulated switch cabinet and putting forward technical requirements), the normal pressure switch cabinet has more stringent size requirements, so the internal space of the normal pressure switch cabinet becomes more cramped, resulting in that the traditional main bus connection bus socket cannot well adapt to the normal pressure switch cabinet under the new standard. Specifically, the traditional bus socket is columnar, in order to ensure that the bus socket has a safe creepage distance, the bus socket needs sufficient length (usually also configured with an umbrella skirt structure), so under the existing bus socket structure and size, installation is inconvenient. And due to the mismatch of the bus socket, the existing normal pressure switch cabinet cannot implement the upper isolation and lower grounding (the arrangement of upper isolation circuit breaker and lower grounding switch device in the switch cabinet) scheme. SUMMARY

[0003] The utility model discloses the purpose of application: to overcome the defects in the prior art, the utility model provides a kind of bus socket with reasonable structure design, it is convenient to install and use.

[0004] To achieve the above object, the utility model provides the following technical scheme:

[0005] A kind of bus socket, including insulator and center conductor, insulator has a plug-in port and second end, center conductor includes the plug-in conductive rod corresponding in plug-in port, plug-in conductive rod is connected with electric connector, electric connector has the electric connection part corresponding on second end, characterized by: the insulator includes the plug-in socket portion of one end shaped with plug-in port, the transverse side of this plug-in socket portion integrally formed with "7" type elbow, "7" type elbow includes the lateral protruding portion protruding on the transverse side wall of plug-in socket portion, and the longitudinal handle portion of the second end portion constituting the second end, longitudinal handle portion extends in the direction opposite to the direction of plug-in port, the second end portion protrudes from the end of plug-in socket portion on longitudinal handle portion.

[0006] Preferably, the electric connector includes an integrally formed L-shaped plate, the head end of one arm plate of the L-shaped plate extends from the second end to form the electric connection part, the other arm plate of the L-shaped plate extends to a position opposite the plug-in conductive rod and is fixedly connected with the plug-in conductive rod, and the plug-in conductive rod is perpendicular to the arm plate of the L-shaped plate corresponding to the plug-in conductive rod.

[0007] Preferably, the plug-in conductive rod is provided with a bolt hole, the arm plate of the L-shaped plate is provided with a connecting through hole, and a fixing bolt is passed through the connecting through hole and fixed on the bolt hole.

[0008] By adopting the technical scheme, the plug-in port is formed on the plug-in seat part, the plug-in seat part is transversely formed with a "7" shaped elbow, the second end part and the plug-in port are designed in a staggered manner, the insulator formed by the plug-in seat part and the "7" shaped elbow can ensure a sufficient creepage distance, the size of the plug-in seat part can be shortened, and a clearance space for avoiding other components during installation and use is formed, so that safety and reliability during use are ensured, and the plug-in seat part is convenient to install.

[0009] The utility model discloses still a kind of bus socket installation convenient, reliable in use, and realize the design of upper isolation lower grounding of normal voltage switchgear, disconnecting switch device and vacuum switch unit are arranged in the sealed cabinet body, expansion installation opening is equipped on the side of sealed cabinet body, bus socket is configured on expansion installation opening, bus socket includes insulator and center conductor, insulator has a plug-in port and second end part, center conductor includes plug-in conductive rod corresponding in plug-in port, plug-in conductive rod is connected with electric connection piece, electric connection piece has electric connection part corresponding on second end part, characterized in that: disconnecting switch device is arranged above vacuum switch unit, and then the electric connection end of the top of disconnecting switch device is higher than expansion installation opening, the insulator includes plug-in seat part that one end is formed with plug-in port, "7" shaped elbow is integrally formed on the transverse side of plug-in seat part, "7" shaped elbow includes lateral protruding portion protruding on the transverse side wall of plug-in seat part, and longitudinal handle portion of the second end part, longitudinal handle portion extends in the direction opposite to the direction of plug-in port, the end of plug-in seat part of second end part protrudes on longitudinal handle portion, and longitudinal handle portion of bus socket is electrically connected to the electric connection end of the top of disconnecting switch device.In new normal voltage switchgear national grid standard, the normal voltage switchgear using upper isolation lower grounding scheme will result in that the distance between disconnecting switch device and cabinet side plate is short, and the upper electric connection end of disconnecting switch device is higher than expansion installation opening, by adopting the technical scheme, the structure of bus socket can well adapt to the above-mentioned normal voltage switchgear, realize that the normal voltage switchgear can use upper isolation lower grounding scheme under new national grid standard, ensure safety and reliability during use, and have the advantages of convenient installation.

[0010] The utility model will be further described below with reference to the drawings. DRAWINGS

[0011] Figure 1 It is the structure schematic diagram of the utility model normal voltage switchgear;

[0012] Figure 2 It is the internal structure schematic diagram of the utility model normal voltage switchgear.

[0013] Figure 3 It is structure schematic view of busbar socket of the utility model;

[0014] Figure 4 It is overhead view of busbar socket of the utility model;

[0015] Figure 5 It is Figure 4 It is sectional view along A-A line;

[0016] Figure 6 It is structure schematic view of center conductor of the utility model. DETAILED DESCRIPTION

[0017] Referring to the accompanying drawings Figures 1-6The utility model discloses a kind of normal-pressure switch cabinets, adopt upper isolation lower connection place scheme, including cabinet 1, disconnecting circuit breaker device 2 and vacuum switch unit 3 of laminated arrangement are equipped in sealed cabinet 1, expansion installation port 11 is equipped on the side of sealed cabinet 1, expansion installation port 11 is configured busbar socket 4, since the width size of cabinet 1 is smaller under the new normal-pressure switch cabinet guonet standard than previous size, and expansion installation port position on cabinet in normal-pressure switch cabinet guonet standard is limited, so when disconnecting circuit breaker device 2 is arranged above vacuum switch unit 3, the electrical connection end 2-1 of disconnecting circuit breaker device 2 top is higher than expansion installation port 11.Usually busbar socket 4 includes insulator 41 and center conductor 42, insulator 41 has a plug-in port 41a and second end 41b, center conductor 42 includes plug-in conductive rod 421 corresponding in plug-in port 41a, plug-in conductive rod 421 is connected with electrical connection piece 422, electrical connection piece 422 has electrical connection part 422a corresponding on second end 41b.To realize more convenient and reliable installation of busbar socket, adopt as optimization design: the insulator 41 includes one end and is formed with the plug-in port 41a of plug-in socket part 411, the transverse side of this plug-in socket part 411 is integrally formed with "7" type crank arm, "7" type crank arm includes lateral protruding portion 412 protruding on the transverse side wall of plug-in socket part 411, and end portion constitutes the second end 41b of longitudinal handle portion 413, longitudinal handle portion 413 extends in the direction opposite to the direction of plug-in port 41a, the end portion of plug-in socket part 411 where second end 41b protrudes from longitudinal handle portion 413, so that the second end and plug-in port for connecting with disconnecting circuit breaker device are arranged in dislocation, the plug-in socket part of busbar socket can be designed with shorter size to avoid interference with disconnecting circuit breaker device, and the longitudinal handle portion of busbar socket extends to the electrical connection end on the top of disconnecting circuit breaker device and is electrically connected.Moreover, under the structural design of plug-in socket part and "7" type crank arm of busbar socket, the tortuous outer contour of busbar socket can ensure that busbar socket has sufficient creepage distance, so as to ensure the safety and reliability of use.To improve structural strength, reinforcing rib 414 is formed at the corner of lateral protruding portion 412 and plug-in socket part 411.

[0018] Among them, the electrical connection piece 422 includes integrally-formed L-shaped plate-shaped piece 4221, the head end of one arm plate of L-shaped plate-shaped piece 4221 extends to second end 41b to constitute electrical connection part 422a, the other arm plate of L-shaped plate-shaped piece 4221 extends to the position opposite plug-in conductive rod 421 and is fixedly connected with plug-in conductive rod 421, plug-in conductive rod 421 is perpendicular to the arm plate of L-shaped plate-shaped piece 4221 corresponding with plug-in conductive rod 421. The structure of center conductor is simple and reliable, and the busbar socket is convenient and reliable to process and form;And has the advantages of convenient installation.

[0019] As a reliable and simple way, the plug-in conductive rod 421 is provided with a bolt hole, the arm plate of the L-shaped plate 4221 is provided with a connecting through hole, and a fixing bolt 4222 is passed through the connecting through hole and fixed on the bolt hole. That is, the plug-in conductive rod and the L-shaped plate are fixedly connected in an integrated manner by means of a bolt, which is simple and reliable in structure. Of course, the arm plate of the plug-in conductive rod and the L-shaped plate can be fixedly connected in other manners in the prior art, such as welding, riveting and the like.

[0020] The new normal pressure switch cabinet under the national grid standard can adopt the scheme of isolation on the top and connection on the bottom, which can ensure the safety and reliability of the bus socket in use and has the advantages of convenient installation.

Claims

1. A busbar socket, comprising an insulator and a center conductor, the insulator having a plug-in port and a second end, the center conductor including a plug-in conductive rod corresponding to the plug-in port, the plug-in conductive rod being connected to an electrical connector, the electrical connector having an electrical connection portion corresponding to the second end, characterized in that: The insulator includes a socket portion with a plug-in port formed at one end. A "7"-shaped crank arm is integrally formed on one lateral side of the socket portion. The "7"-shaped crank arm includes a lateral protrusion on the lateral sidewall of the socket portion and a longitudinal handle portion whose end forms the second end portion. The longitudinal handle portion extends in the opposite direction to the plug-in port, and the second end portion of the longitudinal handle portion extends beyond the end portion of the socket portion.

2. The busbar socket according to claim 1, characterized in that: The electrical connector includes an integrally formed L-shaped plate. The head end of one arm plate on the L-shaped plate extends out to form the second end to form an electrical connection part. Another arm plate on the L-shaped plate extends to the position directly opposite the insertion conductive rod and is fixedly connected to the insertion conductive rod. The insertion conductive rod is perpendicular to the arm plate on the L-shaped plate that corresponds to and cooperates with the insertion conductive rod.

3. The bus socket according to claim 2, characterized in that: The connector conductive rod is provided with bolt holes, and the arm plate of the L-shaped plate is provided with connecting through holes. A fixing bolt passes through the connecting through holes and is fixed in the bolt holes.

4. A normal-pressure switchgear, comprising stacked disconnector devices and vacuum switch units within a sealed cabinet, and an expansion mounting port on the side of the sealed cabinet, wherein a busbar socket is configured on the expansion mounting port, characterized in that: The disconnecting switch device is arranged above the vacuum switch unit, and the electrical connection end at the top of the disconnecting switch device is higher than the expansion mounting port. The bus socket is the bus socket as described in any one of claims 1 to 3 above, and the longitudinal handle of the bus socket extends to and is electrically connected to the electrical connection end at the top of the disconnecting switch device.

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