CN201298615Y

CN201298615Y - Bus connector

Info

Publication number: CN201298615Y
Application number: CNU2008201894092U
Authority: CN
Inventors: 陈朝晖; 杨家坤; 刘上金; 黄铭昌
Original assignee: GUANGDONG GCA CABLE ACCESSORY CO Ltd
Current assignee: GUANGDONG GCA CABLE ACCESSORY CO Ltd
Priority date: 2008-08-29
Filing date: 2008-08-29
Publication date: 2009-08-26
Anticipated expiration: 2018-08-29

Abstract

The utility model relates to a bus connector used in a 24kv and under 24kv gas insulation metal close switch apparatus, which mainly comprises a rubber sleeve, a spring, a fan wafer, a grid, an earth lead set and an aluminum pipe, wherein the fan wafer is arranged in a neck of the grid and then is fixed with the neck together by the spring to form a fan contact. Two ends of the inner cavity of the rubber sleeve are filled with the aluminum pipe and then the fan contact is inserted, and then the middle part of the outer surface of the inner cavity is provided with the earth lead set to form the bus connector. The 24kv and under 24kv gas insulation metal close switch apparatus for joining a cabinet by using the bus connector has good ventilating property, compact structure, reliable quality and better insulation performance and improves the reliability and the safety of the operation of the apparatus.

Description

A kind of bus tie

Technical field:

The utility model relates to the insulating part technical field of using in 24kV and the following Cubicle Gas-Insulated Switchgear, refers in particular to a kind of bus tie.

Background technology:

In the process that the design and installation of 24kV and following Cubicle Gas-Insulated Switchgear are used, the control of the connecting method between the switchgear, the design selection of insulating part and installation quality thereof, it is the emphasis that product design personnel and project installation personnel consider always, this is because the technical indicator of insulating part is the bottleneck of integral device performance index, have only the technical merit of insulating part has been improved, the technical merit of integral device could be improved, the fail safe and the reliability of integral device operation could be improved.Existing bus tie: 1. contact is made up of the sheet contact, and the contact of this structure is under the same condition of installing and using, and through-current capability is low, and rated current can only reach 630A.Since the continuous high speed development of national economy, the continuous increase of power consumption, the performance index of user's switching devices propose higher requirement, and low rated current has limited the development and the application of Cubicle Gas-Insulated Switchgear.2. the inner chamber of rubber sleeve does not have the aluminum pipe of support.Switchgear is when splicing, and the insulation coordination of bus tie and bus-bar insulator is the key that guarantees its electric property, and lacks the bus tie that supports aluminum pipe that the interfacial pressure of insulation coordination will can not get reliable assurance.3. the product structure size is big.The physical dimension of bus tie directly has influence on the cabinet size and the manufacturing cost of switchgear, and big physical dimension will make the cabinet size of switchgear become big, increases product cost.So, a kind of novel bus tie of development and Design, the key of technical quality level when being raising and assurance Cubicle Gas-Insulated Switchgear assembly cabinet.

Summary of the invention:

The purpose of this utility model is to overcome the weak point of existing product technology, a kind of bus tie is provided, using this bus tie, to piece together the 24kV and the following Cubicle Gas-Insulated Switchgear through-current capability of cabinet good, compact conformation, reliable in quality, have good insulation property simultaneously, improve operation stability of equipment and fail safe.

For achieving the above object, the technical scheme that the utility model provides is: mainly be made of rubber sleeve, spring, fan-shaped contact, grid sheet, earth connection group, aluminum pipe, fan-shaped contact is contained in the draw-in groove of grid sheet, they are fixed together by spring handle then, form fan-shaped contact.The aluminum pipe of packing at the inner chamber two ends of rubber sleeve inserts fan-shaped contact again, loads onto the earth connection group in the middle part of its outer surface then, constitutes bus tie.

After the utility model adopts said structure, the through-current capability of bus tie is strong, because this version of fan-shaped contact, the contact-making surface and the cross section of conductor have been increased, greatly improve the through-flow performance of bus tie, requirement when satisfying rated current 1250A switchgear assembly cabinet, and have 1.2 times design to use nargin.Bus tie has good insulation property, bus tie by with switchgear in bus-bar insulator be connected cooperation, realize the assembly cabinet of switchgear, because the supporting role of aluminum pipe, the insulator interface pressure of bus tie and bus-bar insulator is guaranteed reliably, also improved the insulation level of integral device, made the operation of equipment more stable and safer.Simultaneously, the bus tie volume is little, and compact conformation makes the cabinet small designization of switchgear, reduces product cost.

Description of drawings:

Accompanying drawing 1 is a structural representation of the present utility model;

Accompanying drawing 2A, 2B are the structural representation of the fan-shaped contact of the utility model;

Accompanying drawing 3 is pieced together the structural representation of cabinet for using the utility model.

Embodiment:

Below in conjunction with a preferred embodiment and accompanying drawing thereof the utility model is described further.

Shown in accompanying drawing 1, accompanying drawing 2A, 2B, present embodiment mainly is made of rubber sleeve 1, spring 2, fan-shaped contact 3, grid sheet 4, earth connection group 5, aluminum pipe 6, fan-shaped contact 3 is contained in the draw-in groove of grid sheet 4, by spring 2 they is fixed together then, form fan-shaped contact 7.The aluminum pipe 6 of packing at the inner chamber two ends of rubber sleeve 1 inserts fan-shaped contact 7 again, loads onto earth connection group 5 in the middle part of its outer surface then, constitutes bus tie.After the utility model adopted said structure, the through-current capability of bus tie was strong, the requirement in the time of satisfying rated current 1250A switchgear assembly cabinet, and have 1.2 times design to use nargin.Simultaneously, bus tie has good insulation property, as shown in Figure 3, bus tie by with switchgear 8 in bus-bar insulator 9 be connected cooperation, realize the assembly cabinet of switchgear, because the supporting role of aluminum pipe 6, the insulator interface pressure of bus tie and bus-bar insulator is guaranteed reliably, also improved the insulation level of integral device, made the operation of equipment more stable and safer.In addition, the bus tie volume is little, and compact conformation can make the cabinet small designization of switchgear, reduces product cost.

The embodiment of the above only is preferred embodiment of the present utility model; be not to limit practical range of the present utility model with this; so all equivalences of doing according to shape of the present utility model, structure and principle change, and all should be covered by within the protection range of the present utility model.

Claims

1, a kind of bus tie mainly is made of rubber sleeve (1), spring (2), fan-shaped contact (3), grid sheet (4), earth connection group (5), aluminum pipe (6), it is characterized in that:

A, fan-shaped contact (3) are contained in the draw-in groove of grid sheet (4), by spring (2) they are fixed together, and form fan-shaped contact (7);

B, rubber sleeve (1) the inner chamber two ends aluminum pipe (6) of packing into inserts fan-shaped contact (7) again, and earth connection group (5) is loaded onto in the middle part of rubber sleeve (1) outer surface, constitutes bus tie.