CN102709832A

CN102709832A - Conducting electric device for electric switch equipment

Info

Publication number: CN102709832A
Application number: CN2012101844361A
Authority: CN
Inventors: 孙清超; 林麟; 贺晶晶; 雷传
Original assignee: Pinggao Group Co Ltd; Henan Pinggao Electric Co Ltd
Current assignee: Pinggao Group Co Ltd; Henan Pinggao Electric Co Ltd
Priority date: 2012-06-06
Filing date: 2012-06-06
Publication date: 2012-10-03

Abstract

The invention relates to a conducting electric device for electric switch equipment. The conducting connecting device is characterized in that two functions of electric field optimization and current carrying of a contact seat in the prior art are separated, the conducting connecting device is divided into a shielding cover used for electric field optimization and a contact seat used for being in charge of current carrying, a touch finger installing groove is positioned on the outer peripheral wall of the contact seat, and the outer peripheral surface of the guide end of an insulation guide element is exposed out from the outer peripheral surface of the contact seat to be in contact with the inner wall surface of a conducting tube, so the blind hole structure in the contact seat in the prior art is removed, the appearance size and the weight of the contact seat are reduced, in addition, the processing difficulty of the contact seat is lowered, the manufacture cost of the contact seat is reduced, and further, the problems of large own appearance size, heavy weight and high manufacture cost of the contact seat in the prior part are solved.

Description

A kind of electric switch equipment is used conductive connecting device

Technical field

The present invention relates to the electric equipment technical field, relate in particular to a kind of electric switch equipment and use conductive connecting device.

Background technology

At present; In the Cubicle Gas-Insulated Switchgear; Bus and the contact form that is electrically connected mainly contain two kinds of compression joint type and plug-in types, wherein the plug-in type contact base that has spring touch finger or watchband fingertip, perhaps mounting spring fingertip or the watchband fingertips on contact tube of adopting more.For example application number is that 200820228958.6 Chinese invention patent discloses a kind of Cubicle Gas-Insulated Switchgear conductive connecting device; Be fixed in this conductive connecting device on the contact base of the column on the connection inserts of insulating basin and offer the blind hole that supplies contact tube to stretch into; And be installed with the guide blot that guarantees the axiality of contact tube and blind hole in the endoporus that can stretch into contact tube on the connection inserts that can contact base be fixed on insulating basin, again at the cecum of blind hole; But along with the technical parameters such as rated current of Cubicle Gas-Insulated Switchgear are increasingly high; According to the skin effect of alternating current, the diameter of section size of contact base wherein and contact tube is also made bigger and bigger, and this contact base that generally uses is by the block of metal manufacturing; It need be taken into account and optimize electric field and carry the through-flow two kinds of functions of conductor; So exist switch parameter high more, self overall volume and the quality of contact base are big more, the problem that manufacturing cost is high more.

Summary of the invention

The present invention proposes a kind of electric switch equipment and use conductive connecting device, self overall volume and the quality that are intended to solve contact base in the prior art are big, the problem that manufacturing cost is high.

Electric switch equipment of the present invention is following with the technical scheme of conductive connecting device:

A kind of electric switch equipment is used conductive connecting device; The contact tube that comprises the fingertip installed on the contact base, contact base of the column of extending along fore-and-aft direction and insulation guide, is electrically connected with contact base through fingertip; Offer the fingertip mounting groove that is used to install fingertip on the said contact base; Said insulation guide have the guide end that cooperates along fore-and-aft direction guiding with contact tube and cross section from after diminishing forward cone segments; Said fingertip mounting groove is on the periphery of contact base; The rear end of said contact tube is set on the periphery of contact base, and at the radome that also is equiped with on the periphery of contact base on the periphery that is used to be located at contact tube with the junction of parcel contact base and contact tube; The guide end of said insulation guide extends back and is provided with the outer annular guiding edge of placing that is around in contact base; And offer the connecting hole that the bar portion that supplies attachment screw is passed in the cone segments of insulation guide; The outer peripheral face on said annular guiding edge cooperates along the fore-and-aft direction guiding with the internal face of contact tube; Said insulation guide is provided with the shelves edge that stops the head of attachment screw to pass of being used to that is in connecting hole front opening place, and on contact base, offers the bolt corresponding with said connecting hole and use the hole.

Said bolt uses the hole to be the axially extended through hole along contact base.

Said connecting hole is a counter sink, the aperture section that said connecting hole has the countersunk head section of the head that is used to wrap up attachment screw and is used to supply the bar portion of attachment screw to pass, and said shelves are along being in the countersunk head section of connecting hole and the crossover position place between the aperture section.

Said connecting hole has at least two, and evenly distributes at the spaced radial of guide.

Convex with the limiting stand of a side that is in the fingertip mounting groove on the outer peripheral face of said contact base,

Be equiped with the cushion pad or the buffer spring that are between limiting stand and the fingertip mounting groove on the periphery of said contact base.

The front end of said contact tube has and is used for the junction that is connected with the bus-bars conductor one.

The optimization electric field that the present invention has contact base of the prior art and two kinds of functions of loaded current are separated; Be divided into radome that is used to optimize electric field and the contact base that is used for being responsible for loaded current, and the fingertip mounting groove is on the periphery wall of contact base, the outer peripheral face that makes insulation guide guide end exposes to contact with the internal face of contact tube from the outer peripheral face of contact base; Thereby the blind hole structure of contact base in the prior art is removed; Make the overall volume and the quality of contact base reduce, and reduced the difficulty of processing of contact base, reduced the manufacturing cost of contact base; And then self overall volume and the quality that have solved contact base in the technology are big, problem that manufacturing cost is high.

Description of drawings

Fig. 1 is the structural representation of embodiments of the invention.

Embodiment

Electric switch equipment of the present invention is with the embodiment of conductive connecting device: as shown in Figure 1; This conductive connecting device comprise on the connection inserts 3 of the insulating basin 2 installed on the port of tubular shell 1, housing 1, insulating basin 2 through contact base 5, the contact base 5 of the removable fixing column of attachment screw 4 and be connected the spring touch finger 8 installed on the periphery of the contact tube 7 that is embedded between the inserts 3 in fixing radome 6, the inserting annular gap between the outer peripheral face of the internal face of radome 6 and contact base 5, contact base 5 and contact base 5 away from the removable fixing insulation guide 9 of an end that connects inserts 3; Wherein, Contact tube 7 is wholely set with bus-bars conductor; Thereby make the front end of contact tube 7 have the junction that is connected with the bus-bars conductor one; Offer on the contact base 5 and be used for through attachment screw 4 with the screw on the connection inserts 3 that contact base 5 is fixed on insulating basin 2 with hole 5-1 and be in the fingertip mounting groove 5-2 that is used for mounting spring fingertip 8 on the periphery wall of contact base 5; Screw with hole 5-1 along the extending axially of contact base 5, and the limiting stand 5-3 that is provided with a side that is in fingertip mounting groove 5-2 on the outer peripheral face of contact base 5 and be in limiting stand 5-3 and fingertip mounting groove 5-2 between cushion pad 5-4; Radome 6 have the closing in end 6-1 that is embedded between the connection inserts 3 of contact base 5 and insulation plate 2 and with the 6-2 that dehisces to hold of the outer peripheral face matched in clearance of contact tube 7; The two ends of insulation guide 9 are respectively guide end and cone segments; Wherein guide end be provided with the periphery that is around in contact base 5 annular guiding along 9-1; The cone segments of insulation guide 9 is a cross section to away from the diminishing cone structure of the direction of guide section 9-1; And offer on the cone segments two be provided with at interval be used for contact base 5 on screw with the corresponding connecting hole 9-2 that passes for the head of attachment screw 4 of hole 5-1; This connecting hole 9-2 is a counter sink; The countersunk head section 9-3 of connecting hole 9-2 with the bar portion that head wraps up, aperture section 9-4 can supply attachment screw 4 of attachment screw 4 pass, intermediate location between countersunk head section 9-3 and the aperture section 9-4 constituted and is used to stop the head of attachment screw to pass the retaining edge of aperture section, and the screw of offering on connecting hole 9-2 and the contact base 5 is communicated with hole 5-1.

Present embodiment in use; Earlier contact base 5, insulation guide 9 are fixed on being connected on the inserts 3 of insulating basin 2 with radome 6 through attachment screw 4; Then cushion pad 5-4 is installed in the outer peripheral face upper limit platform 5-3 of contact base 5 and the position between the fingertip mounting groove 5-2; Again spring touch finger 8 is installed among the fingertip mounting groove 5-2 on the contact base 5; In the annular gap between the internal face that contact tube 7 is inserted radomes 6 and the outer peripheral face of contact base, the pipe perisporium that makes contact tube 7 simultaneously respectively with the guide section 9-1 and spring touch finger 8 contact matching of the guide 9 that insulate.

Radome 6 is formed by thin-wall metal sheet material spinning or is cast as thin-wall construction as required in the present embodiment, and the electric field structure that the profile of radome 6 is optimized as required and deciding; Fingertip mounting groove 5-2 quantity (is containing one) more than one, (contains four) below four, and concrete quantity determines according to the through-current capability between required contact tube 7 and the contact base; Contact tube 7 is wholely set with bus-bars conductor; And contact tube 7 is hollow tubes of being processed by electric conducting material; Like electric conducting materials such as aluminium, aluminium alloy, copper, copper alloys; Because exempted contact tube 7 is welded on the structure on the fixed contact main body (not shown),, thereby has reduced the processing and manufacturing cost and practiced thrift metal material so contact tube 7 also can be with processing through thin-walled material such as simple finished pipe profile; Insulation guide 9 is processed by flexible insulating material; And the partly outstanding radome 6 of cone structure; Such design can be avoided in the process that contact tube 7 butt contact seats 5 are installed, contact tube 7 and radome 6 collisions; Cause the function of radome 6 its electric field shieldings of deformation effect, can guide contact tube 7 correct contact spring fingertips 8 again; The outer peripheral face of contact base 5 is provided with limiting stand 5-3 and cushion pad 5-4; Limiting stand 5-3 and contact base 5 are structure as a whole; Limiting stand 5-3 is positioned at the side of fingertip mounting groove 5-2 away from insulation guide 9 installation sites simultaneously; The main purpose that limiting stand 5-3 is set be prevent contact tube 7 install and use in the transition displacement, and impact shield cover 6 causes the function of radome 6 its electric field shieldings of deformation effect; The purpose of reload buffer pad 5-4 is to avoid limiting stand 5-3 directly to contact with contact tube 7, causes both to damage.

In the above-described embodiments; The periphery of contact base is provided with limiting stand and the cushion pad that is used to limit the contact tube axial location; In other embodiments; Cushion pad also can replace with buffer spring, simultaneously also can remove limiting stand and cushion pad, just through between spring touch finger and the contact tube and the frictional force between guide and the contact tube guarantee the axial location of contact tube.

In the above-described embodiments, connecting hole is two, and evenly distributes at the spaced radial of insulation guide, and in other embodiments, connecting hole also can be one or more than two, and concrete quantity determines according to actual operating position.

In the above-described embodiments, the fingertip of installing in the fingertip mounting groove is a spring touch finger, and in other embodiments, spring touch finger also can replace with the watchband fingertip.

In the above-described embodiments, contact base is to be fixed on the connection inserts on the insulating basin through attachment screw, and in other embodiments, contact base also can be fixed on the connection inserts on the insulating basin through modes such as welding, bolt connections.

In the above-described embodiments, radome is embedded at contact base through its end that closes up and connects between the inserts, and in other embodiments, radome also can be assemblied on the periphery of contact base through its end interference of closing up.

Claims

1. an electric switch equipment is used conductive connecting device; The contact tube that comprises the fingertip installed on the contact base, contact base of the column of extending along fore-and-aft direction and insulation guide, is electrically connected with contact base through fingertip; Offer the fingertip mounting groove that is used to install fingertip on the said contact base; Said insulation guide have the guide end that cooperates along fore-and-aft direction guiding with contact tube and cross section from after diminishing forward cone segments; It is characterized in that: said fingertip mounting groove is on the periphery of contact base; The rear end of said contact tube is set on the periphery of contact base, and at the radome that also is equiped with on the periphery of contact base on the periphery that is used to be located at contact tube with the junction of parcel contact base and contact tube; The guide end of said insulation guide extends back and is provided with the outer annular guiding edge of placing that is around in contact base; And offer the connecting hole that the bar portion that supplies attachment screw is passed in the cone segments of insulation guide; The outer peripheral face on said annular guiding edge cooperates along the fore-and-aft direction guiding with the internal face of contact tube; Said insulation guide is provided with the shelves edge that stops the head of attachment screw to pass of being used to that is in connecting hole front opening place, and on contact base, offers the bolt corresponding with said connecting hole and use the hole.

2. electric switch equipment according to claim 1 is used conductive connecting device, it is characterized in that: said bolt uses the hole to be the axially extended through hole along contact base.

3. electric switch equipment according to claim 1 is used conductive connecting device; It is characterized in that: said connecting hole is a counter sink; The aperture section that said connecting hole has the countersunk head section of the head that is used to wrap up attachment screw and is used to supply the bar portion of attachment screw to pass, said shelves are along being in the countersunk head section of connecting hole and the crossover position place between the aperture section.

4. use conductive connecting device according to any described electric switch equipment in the claim 1 to 3, it is characterized in that: said connecting hole has at least two, and evenly distributes at the spaced radial of guide.

5. use conductive connecting device according to any described electric switch equipment in the claim 1 to 3, it is characterized in that: convex with the limiting stand of a side that is in the fingertip mounting groove on the outer peripheral face of said contact base,

Electric switch equipment according to claim 5 is used conductive connecting device, it is characterized in that: be equiped with the cushion pad or the buffer spring that are between limiting stand and the fingertip mounting groove on the periphery of said contact base.

6. use conductive connecting device according to any described electric switch equipment in the claim 1 to 3, it is characterized in that: the front end of said contact tube has and is used for the junction that is connected with the bus-bars conductor one.