CN201622940U

CN201622940U - Watchband type contact finger conducting device

Info

Publication number: CN201622940U
Application number: CN2010201253601U
Authority: CN
Inventors: 万华; 王士杰; 张俊; 于立鸣
Original assignee: TIANJIN BAILI SWITCHGEAR CO Ltd
Current assignee: Tianjin Baili High Voltage Electric Co., Ltd.
Priority date: 2010-03-08
Filing date: 2010-03-08
Publication date: 2010-11-03
Anticipated expiration: 2020-03-08

Abstract

The utility model relates to a watchband type contact finger conducting device which is characterized by comprising contact finger seats, two sets of watchband contact fingers and a contact, wherein the contact finger seats are provided with two ring-shaped grooves; the contact fingers are arranged in the ring-shaped grooves; the two sets of contact fingers are respectively arranged in the two ring-shaped grooves; the groove width of each ring-shaped groove is 10-12mm; the distance between the two ring-shaped grooves is 4-5mm; and the distance from each ring-shaped groove to the free end surface of each contact finger seat conductor is 8-10mm. In the aspects of characteristics of electric conductivity and heat conductivity, the watchband type contact finger conducting device has higher continuous current-carrying capacity and short-circuit current tolerance, and can have lower contact resistance by multi-point contact, and especially, two holes on the contact finger seats can lead the temperature rise to be lower; and in the aspects of structure and mechanical characteristics, under the state of equivalent current-guiding capacity and electromagnetic field characteristics, as a shielding piece does not need to be arranged additionally, the design size can be smaller, the structure is simple, the installation is fast, larger installation coaxiality is allowed when the contact stroke is relatively short, and the application range is wider.

Description

Watchband type fingertip electric installation

Technical field

The utility model belongs to a kind of high-voltage electrical equipment, particularly relates to the electric installation that a kind of on-fixed conduction connects the watchband type fingertip of technology of transmission of electricity.

Background technology

Conductive contact one stock self-supporting contact in the conductive attachment mode of existing non-fixed portions and the fingertip sheet contact that relies on spring coil to fix.But these two kinds of connecting modes are behind process high temperature, and the elastic force of the pressure of self-supporting contact closure circle and the spring coil of fingertip sheet contact will be affected.Its electric conductivity also will change.In order to guarantee the uniformity of electromagnetic field, one also need install radome additional simultaneously, and the volume of electrically conducting contact position is bigger like this, and it is very big that corresponding parts associated therewith also will be done.When cost improves, also increased the use amount of greenhouse gas sulphur hexafluorides.

Summary of the invention

The utility model provides a kind of electric installation of being convenient to install and obtain the watchband type fingertip of better temperature rise effect for solving the technical problem that exists in the known technology.

The technical scheme that the utility model is taked for the technical problem that exists in the solution known technology is: it includes fingertip seat, watchband fingertip, contact; On described fingertip seat, cannelure is arranged, described fingertip is packed in the described cannelure, described cannelure is two, described watchband fingertip is two covers, described two cover fingertips are respectively charged in described two cannelures, the groove width of described each cannelure is 10～12mm, and the distance between two described cannelures is 4～5mm, and described cannelure is 8～10mm apart from the distance of described fingertip seat conductor free end face.

The utility model can also adopt following technical scheme: the degree of depth that described contact inserts described fingertip seat is 42～45mm, and apart from described fingertip seat free end face 60 and 80mm place, open two each other vertically and diameter be the hole of 10mm.

Advantage and the good effect that the utlity model has are: 1, conduction-thermal conduction characteristic aspect, have higher lasting current capacity and short circuit current tolerance, simultaneously by the multiple spot contact technique, can realize lower contact resistance, two holes that particularly increase convection current and heat conduction on the fingertip seat help medium in the fingertip seat inner chamber of electrically conducting contact position when temperature raises, with the exchange and the convection current of the medium generation heat of outside, the temperature rise of through-flow electrically conducting contact position when reducing big electric current; 2, structure and mechanical property aspect under the flow conductivity and electromagnetic nature state of equivalence, because needn't increase shielding part in addition, can adopt littler design size, and be simultaneously simple in structure, quick for installation.Hour allow a bigger installation axiality at contacting travel (being the degree of depth that contact inserts the fingertip seat); 3, range of application is wider, can be at air, and vacuum is used in sulfur hexafluoride gas and the insulation wet goods medium.

Description of drawings

Fig. 1 is a structural representation of the present utility model; Fig. 2 is the fingertip holder structure schematic diagram among Fig. 1; Fig. 3 is the structure of contact terminal schematic diagram among Fig. 1.

Embodiment

For further understanding summary of the invention of the present utility model, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows: as shown in Figure 1 to Figure 3, fingertip seat 1, fingertip, contact; Two cannelures 5,6 are arranged on described fingertip seat 1, two cover watchband fingertips 2 insert respectively in cannelure 5 and 6, each cannelure 5 and 6 groove width are 11mm, and the distance between two cannelures 5 and 6 is 4mm, and cannelure 6 is 8mm apart from the distance of the conductor free end face of fingertip seat 1.The degree of depth that contact 4 inserts fingertip seat 1 is 42mm.The groove width that also can be each cannelure 5 and 6 is 12mm, and the distance between two cannelures 5 and 6 is 5mm, and cannelure 6 is 10mm apart from the distance of the conductor free end face of fingertip seat 1.The degree of depth that contact 4 inserts fingertip seat 1 is 45mm.At distance fingertip seat 1 end face 80 and 60mm place, open two mutually vertical, diameter 10mm to discharge orifice 7 and thermal hole 8.

Claims

1. the electric installation of a watchband type fingertip, it includes fingertip seat, watchband fingertip, contact; On described fingertip seat, cannelure is arranged, described fingertip is packed in the described cannelure, it is characterized in that: described cannelure is two, described watchband fingertip is two covers, described two cover fingertips are respectively charged in described two cannelures, the groove width of described each cannelure is 10～12mm, and the distance between two described cannelures is 4～5mm, and described cannelure is 8～10mm apart from the distance of described fingertip seat conductor free end face.

2. the electric installation of watchband type fingertip according to claim 1, it is characterized in that: the degree of depth that described contact inserts described fingertip seat is 42～45mm, and apart from described fingertip seat free end face 60 and 80mm place, open two each other vertically and diameter be the hole of 10mm.