CN203839533U - Power cable wiring terminal - Google Patents

Power cable wiring terminal Download PDF

Info

Publication number
CN203839533U
CN203839533U CN201420256632.XU CN201420256632U CN203839533U CN 203839533 U CN203839533 U CN 203839533U CN 201420256632 U CN201420256632 U CN 201420256632U CN 203839533 U CN203839533 U CN 203839533U
Authority
CN
China
Prior art keywords
power cable
terminal block
wiring board
pipe
crimping tube
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
CN201420256632.XU
Other languages
Chinese (zh)
Inventor
李宏力
吴建国
周贵发
吴昊
桂腾
赖罗彬
张堂松
余大友
陈小华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Duyun Power Supply Bureau of Guizhou Power Grid Co Ltd
Original Assignee
Duyun Power Supply Bureau of Guizhou Power Grid Co Ltd
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 Duyun Power Supply Bureau of Guizhou Power Grid Co Ltd filed Critical Duyun Power Supply Bureau of Guizhou Power Grid Co Ltd
Priority to CN201420256632.XU priority Critical patent/CN203839533U/en
Application granted granted Critical
Publication of CN203839533U publication Critical patent/CN203839533U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a power cable wiring terminal. The power cable wiring terminal comprises a wiring board, the wiring board has an elongated sheet structure, one end of the wiring board is provided with a crimping tube, the crimping tube is a hollow rectangular shaft body, one end, connected with the wiring board, of the crimping tube is enclosed, the other end of the crimping tube is open, an included angle between the central axis of the crimping tube and the central axis of the wiring board in the width direction is 0-30 degrees, and the central axis of the crimping tube and the central axis of the wiring board are located on the same horizontal plane in the thickness direction. Aiming at the design problems existing in existing power cable wiring terminals, redesign is performed, an appropriate structure can be selected according to different connecting environments, a sufficient contact surface and reliable contact are ensured, a cable bears forces uniformly while wiring, mechanical strength requirements are satisfied, and, consequently, faults of the power cable wiring terminal are fundamentally eliminated. The power cable wiring terminal has the advantages of simple structure, low cost and the good using effect.

Description

Terminal block of power cable
Technical field
The utility model relates to field, especially a kind of terminal block of power cable.
Background technology
In electric power system, particularly, in 10kV distribution and 0.4kV secondary network, power cable is widely used.According to operating experience and statistics for many years, find, in the fault of power cable, binding post fault (be mainly heating accident, also have in addition distortion, fracture etc.) accounts for the more than 90% of power cable total failare.
Through investigation and analysis, find, existing terminal block of power cable exist contact-making surface not, contact problem unreliable, discontinuity, these problems have caused the fault of terminal block of power cable higher.
Summary of the invention
The purpose of this utility model is: a kind of terminal block of power cable is provided, and its contact-making surface is enough, contact is reliable, and while making wiring, cable is stressed evenly, meets requirement of mechanical strength, to overcome the deficiencies in the prior art.
The utility model is achieved in that terminal block of power cable, comprise terminal block, terminal block is strip laminated structure, one end at terminal block is provided with aluminium hydraulic pressed connecting pipe, aluminium hydraulic pressed connecting pipe is the rectangle axis body of hollow, the sealing of one end that aluminium hydraulic pressed connecting pipe is connected with terminal block, its other end is uncovered, the axis of aluminium hydraulic pressed connecting pipe and the axis of the terminal block angle on Width is 0-30 °, on thickness direction in same level.
The outer surface of terminal block and the inner surface of aluminium hydraulic pressed connecting pipe are silver-plated or zinc-plated.
Owing to having adopted technique scheme, compared with prior art, the utility model is for the upper problem existing of existing terminal block of power cable design, re-start design, can select applicable structure according to different JA(junction ambient), guarantee that contact-making surface is enough, contact is reliable, while making wiring, cable is stressed evenly, meet requirement of mechanical strength, thereby fundamentally eliminate the fault of terminal block of power cable.The utility model is simple in structure, with low cost, and result of use is good.
Accompanying drawing explanation
Accompanying drawing 1 is A type terminal block of power cable structural representation in embodiment of the present utility model;
Accompanying drawing 2 is the end view of accompanying drawing 1;
Accompanying drawing 3 is Type B terminal block of power cable structural representation in embodiment of the present utility model;
Accompanying drawing 4 is the end view of accompanying drawing 3;
Accompanying drawing 5 is C type terminal block of power cable structural representation in embodiment of the present utility model;
Accompanying drawing 6 is the end view of accompanying drawing 5;
The use schematic diagram that accompanying drawing 7 is embodiment of the present utility model.
Embodiment
Embodiment of the present utility model: terminal block of power cable, first make rectangular terminal block 1, terminal block 1 adopts fine copper material, and copper coin electroplating surfaces with tin (or silver) is processed; The another aluminium hydraulic pressed connecting pipe 2 of making, the rectangle axis body that aluminium hydraulic pressed connecting pipe 2 is hollow, material is fine aluminium, the inner surface of aluminium hydraulic pressed connecting pipe 2 adopts, and zinc-plated (or silver) is processed, aluminium hydraulic pressed connecting pipe 2 one end sealings, the other end is uncovered, one end shape gradual change of sealing, from the shape identical with aluminium hydraulic pressed connecting pipe 2 cross sections, gradual change is the shape identical with the cross section of terminal block 1 extremely, and this gradual change is partly made as to 3 kinds of different sizes, as shown in Figure 1, the gradual change of A specification is partly a symmetrical shape, after aluminium hydraulic pressed connecting pipe 2 is connected with terminal block 1, makes the axis of aluminium hydraulic pressed connecting pipe 2 and terminal block 1 on same straight line; As shown in Fig. 3 and Fig. 5, the gradual change of B specification and C specification part is all the shapes that tilt, and it is 20 ° that B specification makes the angle after aluminium hydraulic pressed connecting pipe 2 is connected with terminal block 1, and it is 30 ° that C specification makes the angle after aluminium hydraulic pressed connecting pipe 2 is connected with terminal block 1; The blind end of aluminium hydraulic pressed connecting pipe 2 with terminal block 1 between adopt friction-welding technique to be connected, and by product specification sign 3 by die marks on terminal block 1 surface.The utility model not perforate during fabrication, only reserved location, can carry out perforate according to related request during if any specific requirement.
Can select according to cable core sectional area and field condition the binding post of different model, as shown in Figure 7, Type B in embodiment (or C type) terminal block of power cable, quantity is 2, its aluminium hydraulic pressed connecting pipe 2 adopts crimping mode to be connected with the left and right two-phase heart yearn of power cable 4 respectively, the aluminium hydraulic pressed connecting pipe 2 of A type terminal block of power cable adopts crimping mode to be connected (as required, also can be with bolts) with the middle phase heart yearn of power cable 4; All terminal blocks 1 are all with bolts with the three-phase of electric power system.
Because terminal block 1 has adopted the connected mode of at least two bolts, stopped the loosening problem of connection causing because of reasons such as electric power, vibrations in service; Because the terminal block 1 of Type B (or C type) terminal block of power cable has certain angle in the vertical direction with aluminium hydraulic pressed connecting pipe 2, solved the stressed larger problem that power cable left and right two-phase heart yearn is connected with aluminium hydraulic pressed connecting pipe 2.
When the phase spacing of electric power system is larger, can select C type terminal block of power cable; When the phase spacing of electric power system hour, can select Type B terminal block of power cable.Certainly, also can, according to on-site actual situations, after calculating, select off-gauge terminal block of power cable of special angle.

Claims (2)

1. a terminal block of power cable, comprise terminal block (1), it is characterized in that: terminal block (1) is strip laminated structure, in one end of terminal block (1), be provided with aluminium hydraulic pressed connecting pipe (2), the rectangle axis body that aluminium hydraulic pressed connecting pipe (2) is hollow, the sealing of one end that aluminium hydraulic pressed connecting pipe (2) is connected with terminal block (1), its other end is uncovered, the angle of the axis of the axis of aluminium hydraulic pressed connecting pipe (2) and terminal block (1) on Width be 0-30 °, on thickness direction in same level.
2. terminal block of power cable according to claim 1, is characterized in that: the inner surface of the outer surface of terminal block (1) and aluminium hydraulic pressed connecting pipe (2) is silver-plated or zinc-plated.
CN201420256632.XU 2014-05-20 2014-05-20 Power cable wiring terminal Expired - Fee Related CN203839533U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420256632.XU CN203839533U (en) 2014-05-20 2014-05-20 Power cable wiring terminal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420256632.XU CN203839533U (en) 2014-05-20 2014-05-20 Power cable wiring terminal

Publications (1)

Publication Number Publication Date
CN203839533U true CN203839533U (en) 2014-09-17

Family

ID=51517333

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420256632.XU Expired - Fee Related CN203839533U (en) 2014-05-20 2014-05-20 Power cable wiring terminal

Country Status (1)

Country Link
CN (1) CN203839533U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109004404A (en) * 2018-07-26 2018-12-14 国网辽宁省电力有限公司本溪供电公司 A kind of abnormity connecting terminal

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109004404A (en) * 2018-07-26 2018-12-14 国网辽宁省电力有限公司本溪供电公司 A kind of abnormity connecting terminal

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Legal Events

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: 20140917

Termination date: 20150520