CN203895627U - Wire clamp of electric power equipment - Google Patents

Wire clamp of electric power equipment Download PDF

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Publication number
CN203895627U
CN203895627U CN201420286182.9U CN201420286182U CN203895627U CN 203895627 U CN203895627 U CN 203895627U CN 201420286182 U CN201420286182 U CN 201420286182U CN 203895627 U CN203895627 U CN 203895627U
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CN
China
Prior art keywords
copper
wire clamp
contact
aluminum
aluminium
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201420286182.9U
Other languages
Chinese (zh)
Inventor
胡金海
宋洁
凌松
王磊
王鹏
李晓东
宋中惠
陈翠玲
Original Assignee
胡金海
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 胡金海 filed Critical 胡金海
Priority to CN201420286182.9U priority Critical patent/CN203895627U/en
Application granted granted Critical
Publication of CN203895627U publication Critical patent/CN203895627U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a wire clamp of electric power equipment, which comprises a copper-aluminum transition wire clamp board body and a clamping plate. The copper-aluminum transition wire clamp board body is composed of an aluminum crimping pipe and a copper plate, wherein the aluminum crimping pipe is welded with the copper plate through flash welding technology. The contact surface of the copper plate is recessed. The shape and the size of a clamping plate are same with those of the copper plate in the copper-aluminum transition wire clamp board body, and the contact surface of the clamping plate is convex. The wire clamp has the following beneficial effects: integrating a lead wire clamp with an equipment wire clamp, reducing one transition contact surface and reducing a potential heating hazard of the contact surface; improving force bearing condition of the lead through arranging the wire outlet angle of the equipment wire clamp to 30 DEG; preventing erosion of rainwater into the contact surface through connecting the lead end with the aluminum crimping pipe, enlarging a contact area and a contact pressure, and improving safe operation reliability of the equipment.

Description

A kind of power equipment wire clamp
Technical field
The utility model relates to a kind of lead-in wire and is connected with equipment room with wire clamp, relates in particular to a kind of power equipment wire clamp.
Background technology
In power plant or the downlead of transformer station's median generatrix in the time being connected with electric equipment, especially in the time that the lead-out terminal of electric equipment is cylindricality (as isolating switch, current transformer etc.), for the reliability that ensures to connect, often need two kinds of dissimilar device clamps to carry out transition connection.As downlead end adopts the screw bolt-type device clamp of aluminium matter conventionally, by aluminium matter bridge shape base plate and three pieces of screw bolt-type cable guides that aluminium matter bridge shape pressing plate forms; Electric equipment for column-shaped output side adopts clip type device clamp conventionally, clamps post ends by contact plate and the irony male cleat of copper spill contact-making surface by bolt.And then by bolt, this two kind equipments wire clamp is connected together, thereby form complete galvanic circle.
During to downlead construction bolt type cable guide, press and fall apart for fear of aluminum steel, after conventionally needing first steel wire aluminium stranded conductor is wound around by aluminium armor tape, be fixed between wire clamp base plate and pressing plate with bolt again.This kind connects technique, effective contact area between steel wire aluminium stranded conductor and wire clamp only has 1/2 even 1/3 of its conductive area, aluminium armor tape between steel wire aluminium stranded conductor and wire clamp has formed a transition resistance layer, increase contact resistance, not only increased transmission losses, caused wire clamp heating, pressing plate is therefore distortion also, cause wire clamp pressure to reduce, form vicious circle, cause security incident.
Because too much contact-making surface makes it when the outdoor application, often cause connecting portion oxidation or bolt looseness, cause connecting portion that abnormal heating often occurs within the operating period, thus the fail safe of impact power supply.
Summary of the invention
The purpose of this utility model is to provide a kind of power equipment wire clamp, overcomes the defect of prior art, reduces to greatest extent transition joint face, the heating problem of avoiding contact-making surface oxidation to produce.
A kind of power equipment wire clamp described in the utility model, comprises copper-aluminium transition wire clip main body and clamping plate.
Further, copper-aluminium transition wire clip main body is made up of aluminum aluminium hydraulic pressed connecting pipe and copper coin two parts.The end of described aluminum aluminium hydraulic pressed connecting pipe crossfades into the aluminium sheet wide with copper coin in casting process, and aluminium sheet and copper coin both ends of the surface are welded into one by flash welding welding procedure, and the contact-making surface at described copper coin position is spill contact-making surface, and respectively there are two installing holes the both sides of copper coin.
Further, clamping plate are irony, and its shape is identical with copper coin partial shape, size in copper-aluminium transition wire clip main body, and contact-making surface is convex, and the both sides of clamping plate respectively have two installing holes corresponding with the installing hole of copper-aluminium transition wire clip main body copper coin part.
Further, aluminum aluminium hydraulic pressed connecting pipe end becomes 30 ° of angles bendings with crossfading between aluminium sheet.
Compared with prior art the invention has the advantages that: cable guide and device clamp are integrated, have reduced by a transition contact-making surface, reduced contact-making surface heating hidden danger; Device clamp outlet angle curves 30 ° of angles, has improved the stressing conditions of wire; Lead end adopts aluminum aluminium hydraulic pressed connecting pipe to connect, and has avoided rainwater to enter the erosion of contact-making surface, and has increased contact area and contact, has improved the reliability of equipment safety operation.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Fig. 1 is the utility model copper-aluminium transition wire clip agent structure schematic diagram;
Fig. 2 is the utility model clamping plate shape schematic diagram;
Fig. 3 is the end view of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing describe in detail the present invention, a kind of power equipment wire clamp, comprise wire clamp main body as shown in Figure 1 with clamping plate as shown in Figure 2.Described wire clamp main body is made up of aluminum aluminium hydraulic pressed connecting pipe 1 and copper coin 2, and the transition face 3 between copper, aluminium is by the welding of flash welding welding procedure face, and the contact-making surface of described copper coin 2 is spill, and respectively has two installing holes 4 in both sides.
Described clamping plate are illustrated in figure 2 irony, and contact-making surface is convex, and respectively have two installing holes 4 in both sides.
Between described aluminum aluminium hydraulic pressed connecting pipe 1 and described copper to aluminum adapter bar 2, become 30 ° of angles to bend as Fig. 3.
When installation, aluminum conductor is inserted in aluminum aluminium hydraulic pressed connecting pipe 1 and compressed with Press Plier, the spill contact-making surface of copper coin 2 and clamping plate convex contact-making surface is as shown in Figure 2 clamped column-shaped output side of electric equipment by 4 bolts, thereby has guaranteed reliable connection the between wire and electric equipment.So just reduce 1 device clamp and 1 contact-making surface than traditional connected mode, reduced device clamp heating probability and reduced transmission losses.
The utility model does not describe part in detail, is those skilled in the art of the present technique's known technology.

Claims (4)

1. a power equipment wire clamp, comprises copper-aluminium transition wire clip main body and clamping plate, it is characterized in that, described copper-aluminium transition wire clip main body is made up of aluminum aluminium hydraulic pressed connecting pipe (1) and copper coin (2) two parts, and the contact-making surface of described copper coin (2) is spill; Described clamping plate shape is identical with copper coin (2) partial shape, size in copper-aluminium transition wire clip main body, and contact-making surface is convex.
2. according to a kind of power equipment wire clamp described in claims 1, it is characterized in that, in described copper-aluminium transition wire clip main body, the end of aluminum aluminium hydraulic pressed connecting pipe (1) crossfades into the aluminium sheet wide with copper coin (2) in casting process; Transition face (3) between copper, aluminium is by the welding of flash welding welding procedure face.
3. according to a kind of power equipment wire clamp described in claims 1, it is characterized in that, the contact-making surface of described copper coin (2) is spill, and respectively has two installing holes (4) in both sides; Described clamping plate are irony, and contact-making surface is convex, and respectively have two installing holes (4) in both sides.
4. according to a kind of power equipment wire clamp described in claims 1, it is characterized in that, between described aluminum aluminium hydraulic pressed connecting pipe (1) and described copper to aluminum adapter bar (2), become 30 ° of angles bendings.
CN201420286182.9U 2014-06-01 2014-06-01 Wire clamp of electric power equipment Expired - Fee Related CN203895627U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420286182.9U CN203895627U (en) 2014-06-01 2014-06-01 Wire clamp of electric power equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420286182.9U CN203895627U (en) 2014-06-01 2014-06-01 Wire clamp of electric power equipment

Publications (1)

Publication Number Publication Date
CN203895627U true CN203895627U (en) 2014-10-22

Family

ID=51721987

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420286182.9U Expired - Fee Related CN203895627U (en) 2014-06-01 2014-06-01 Wire clamp of electric power equipment

Country Status (1)

Country Link
CN (1) CN203895627U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104407180A (en) * 2014-11-28 2015-03-11 国家电网公司 Special wire clamp for performing charged test on lightning arrester
CN104901110A (en) * 2015-05-08 2015-09-09 国网辽宁省电力有限公司盘锦供电公司 Insulation piercing connector
CN105914493A (en) * 2016-06-23 2016-08-31 国网新疆电力公司培训中心 Anti-breaking anti-loosing copper and aluminum adapter clamp

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104407180A (en) * 2014-11-28 2015-03-11 国家电网公司 Special wire clamp for performing charged test on lightning arrester
CN104407180B (en) * 2014-11-28 2017-04-19 国家电网公司 Special wire clamp for performing charged test on lightning arrester
CN104901110A (en) * 2015-05-08 2015-09-09 国网辽宁省电力有限公司盘锦供电公司 Insulation piercing connector
CN105914493A (en) * 2016-06-23 2016-08-31 国网新疆电力公司培训中心 Anti-breaking anti-loosing copper and aluminum adapter clamp

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
EXPY Termination of patent right or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20141022

Termination date: 20150601