CN103439548B - The connection box of electric energy meter post of built-in arc spring pad - Google Patents

The connection box of electric energy meter post of built-in arc spring pad Download PDF

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Publication number
CN103439548B
CN103439548B CN201310423493.5A CN201310423493A CN103439548B CN 103439548 B CN103439548 B CN 103439548B CN 201310423493 A CN201310423493 A CN 201310423493A CN 103439548 B CN103439548 B CN 103439548B
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China
Prior art keywords
arc spring
spring pad
connection terminal
screw
fastening screw
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CN201310423493.5A
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CN103439548A (en
Inventor
石磊
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State Grid Corp of China SGCC
Tangshan Power Supply Co of State Grid Jibei Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
Tangshan Power Supply Co of State Grid Jibei Electric Power Co Ltd
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Priority to CN201310423493.5A priority Critical patent/CN103439548B/en
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Abstract

The present invention relates to a kind of connection box of electric energy meter post of built-in arc spring pad, particularly the connected mode of connection box of electric energy meter terminal and wire, belongs to technical field of electric equipment.Technical scheme is: have binding post body (8), binding post body (8) is provided with connection terminal (1) and bottom binding post string holes (5), the vertical direction of connection terminal (1) and bottom binding post string holes (5) is respectively equipped with fastening screw screw mandrel (4), fastening screw (6), is positioned at fastening screw screw mandrel (4) below and is provided with arc spring pad (10) in connection terminal (1).The invention has the beneficial effects as follows: protect wire core; what prevent holding screw to produce because of vibration loosens and comes off; add contact area; stop the heating of connection terminal tie point place and burnt electric energy meter phenomenon; extend the serviceable life of connection terminal and wire; there is structure simple, feature easy to use.

Description

The connection box of electric energy meter post of built-in arc spring pad
Technical field
The present invention relates to a kind of connection box of electric energy meter post of built-in arc spring pad, particularly the connected mode of connection box of electric energy meter terminal and wire, belongs to technical field of electric equipment.
Background technology
At present, on market, widely used connection box of electric energy meter terminal all adopts screw to screw crimping mode, realizes the connection with wire.With reference to accompanying drawing 1, wire core is placed in connection terminal, tightens fastening screw screw mandrel, realize the connection with wire.Although this crimping mode also can realize and being fastenedly connected of wire, but screw screws excessive, then can damage the core of insulated conductor, there is crimping trace in various degree, in the course of time the structural strength of wire just can be made greatly to reduce, even there will be disconnected stock or short-term phenomenon, and then cause the contact resistance value at connection terminal place to increase; If screw screws too small, though decrease the impression degree of screw to wire core, fully do not contact with wire wicking surface bottom screw, contact resistance value can be caused too to increase.In addition, even if under the prerequisite fully contacted with wire core bottom screw, it is also the contact on a screw rod point and conductor thread core surface.Because the size of contact resistance value and contact area size are inversely proportional to, therefore with the contact in face, contact area is directly made to reduce, resistance value increase.As can be seen here, above-mentioned factor all can cause contact resistance value to increase.When wire flows through electric current, will generate heat at connection terminal place, time large especially by load current, the more the degree of heat of XXL junction, accelerate the oxidation course of wire core, the serviceable life of connection terminal and wire is reduced greatly, also very easily causes electric energy meter tail simultaneously and burn phenomenon, even produce larger power outage.In addition; often resonance effect can be there is in the electrical equipment of day-to-day operation; and vibration can produce to the fastening screw screw mandrel screwed the harmful effect loosening and even come off for a long time; electric energy meter and connecting position of wires generation resistance value can be caused equally to increase, and tie point generates heat and burns the consequence of electric energy meter tail.
Summary of the invention
The object of the invention is to provide a kind of connection box of electric energy meter post of built-in arc spring pad, the mode crimped with wire core by connection terminal arc spring shim, realizes the connection with wire, solves Problems existing in background technology.
Technical scheme of the present invention is:
A kind of connection box of electric energy meter post of built-in arc spring pad, there is binding post body, binding post body is provided with connection terminal and bottom binding post string holes, the vertical direction of connection terminal and bottom binding post string holes is respectively equipped with fastening screw screw mandrel, fastening screw, is positioned at below fastening screw screw mandrel and is provided with arc spring pad in connection terminal; Described connection terminal vertical direction is provided with two fastening screw screw mandrels, be positioned at below two fastening screw screw mandrels connection terminal respectively correspondence be provided with arc spring pad; Described arc spring pad is in " 3 " font; " 3 " font arc spring pad is under the effect of pad spring; produce reacting force upwards; prevent loosening of fastening screw screw mandrel, fastening screw screw mandrel acts on arc spring pad, protects wire wicking surface from impression; arc spring pad arch section fully contacts with wire core circular surface; realize crimping of face and face, increase contact area, reduce contact resistance.
In described binding post string holes, two lateral incisions are greater than the square hole of holding screw shank diameter size.
The vertical direction of described connection terminal and bottom binding post string holes is respectively equipped with two fastening screw screw mandrels, two fastening screws, below two fastening screw screw mandrels, in bottom binding post string holes, two lateral incisions are greater than the square hole of holding screw shank diameter size, arc spring pad is horizontally placed between two square holes, the overall width of arc spring pad length and connection terminal is consistent, the width of arc spring pad is slightly less than the width in square hole, arc spring pad moves up and down along in the framework of square hole, arc spring pad is in " 3 " font, along fully fitting at the bottom of " 3 " font spring and square hole, and the reacting force produced under the effect of pad spring upwards, make holding screw more firm, what prevent vibration to produce loosens and comes off.
The invention has the beneficial effects as follows: protect wire core; what prevent holding screw to produce because of vibration loosens and comes off; add contact area; stop the heating of connection terminal tie point place and burnt electric energy meter phenomenon; extend the serviceable life of connection terminal and wire; there is structure simple, feature easy to use.
Accompanying drawing explanation
Fig. 1 is background technology structural representation;
Fig. 2 is front view of the present invention;
Fig. 3 is side view of the present invention;
Fig. 4 is arc spring pad enlarged drawing of the present invention;
In figure: connection terminal 1, wire 2, tightening screw cap 3, fastening screw screw mandrel 4, bottom binding post string holes 5, fastening screw 6, fixing threaded hole 7, binding post body 8, arc spring pad 10.
Embodiment
Below in conjunction with accompanying drawing, by example, the invention will be further described.
With reference to accompanying drawing 2, 3, 4, a kind of connection box of electric energy meter post of built-in arc spring pad, there is binding post body 8, binding post body 8 is provided with connection terminal 1 and bottom binding post string holes 5, the vertical direction of connection terminal 1 and bottom binding post string holes 5 is respectively equipped with two fastening screw screw mandrels 4, two fastening screws 6, below two fastening screw screw mandrels 4, in bottom binding post string holes 5, two lateral incisions are greater than the square hole of fastening screw screw mandrel 4 diameter, arc spring pad 10 is horizontally placed between two square holes, the overall width of arc spring pad 10 length and connection terminal 1 is consistent, the width of arc spring pad 10 is slightly less than the width in square hole, can move up and down along in the framework of square hole to reach arc spring pad, arc spring pad 10 is in " 3 " font, " 3 " font spring also fully can be fitted with edge at the bottom of square hole, and the reacting force produced under the effect of pad spring upwards, make holding screw more firm, what prevent vibration to produce loosens and comes off.
The course of work: the wire core of wire 2 is inserted in connection terminal 1, rotational fastener screw cap 3, along with fastening screw screw mandrel 4 moves down, arc spring pad 10 thereupon guiding line core surface is close, when fastening screw screw mandrel rotates to certain position, arc spring pad 10 will fit with conductor thread core circular surface, because arc spring pad and wire wicking surface profile are similar to, arc spring pad can be made fully to contact with core, achieve crimping of face and face, add contact area, reduce contact resistance, avoid because of the large problem of the contact resistance put and face contact type causes.Meanwhile, fastening screw screw mandrel acts on arc spring pad, because arc spring pad material compares copper conductor material compressive resistance greatly, can not cause impression phenomenon, reach the object of guardwire core.When unscrewing fastening screw screw mandrel, along with fastening screw screw mandrel moves up, the displacement of arc spring pad increases, and when screw arrives certain position, wire core can be extracted in connection terminal, can complete the process of removing wire.

Claims (1)

1. the connection box of electric energy meter post of a built-in arc spring pad, it is characterized in that there is binding post body (8), binding post body (8) is provided with connection terminal (1) and bottom binding post string holes (5), the vertical direction of connection terminal (1) and bottom binding post string holes (5) is respectively equipped with fastening screw screw mandrel (4), fastening screw (6), is positioned at fastening screw screw mandrel (4) below and is provided with arc spring pad (10) in connection terminal (1); Described connection terminal (1) vertical direction is provided with two fastening screw screw mandrels (4), two fastening screw screw mandrels (4) below be positioned at connection terminal (1) respectively correspondence be provided with arc spring pad (10); Described arc spring pad is in " 3 " font, " 3 " font arc spring pad is under the effect of pad spring, produce reacting force upwards, prevent loosening of fastening screw screw mandrel (4), fastening screw screw mandrel (4) acts on arc spring pad, protects wire wicking surface from impression, arc spring pad arch section fully contacts with wire core circular surface, realize crimping of face and face, increase contact area, reduce contact resistance;
The vertical direction of described connection terminal and bottom binding post string holes is respectively equipped with two fastening screw screw mandrels, two fastening screws, below two fastening screw screw mandrels, in bottom binding post string holes, two lateral incisions are greater than the square hole of holding screw shank diameter size, arc spring pad is horizontally placed between two square holes, the overall width of arc spring pad length and connection terminal is consistent, the width of arc spring pad is slightly less than the width in square hole, arc spring pad moves up and down along in the framework of square hole, arc spring pad is in " 3 " font, along fully fitting at the bottom of " 3 " font spring and square hole,
The wire core of wire (2) is inserted in connection terminal (1), rotational fastener screw cap (3), along with fastening screw screw mandrel (4) moves down, arc spring pad (10) thereupon guiding line core surface is close, arc spring pad (10) will fit with conductor thread core circular surface, arc spring pad and wire wicking surface profile are similar to, and arc spring pad fully contacts with core.
CN201310423493.5A 2013-09-17 2013-09-17 The connection box of electric energy meter post of built-in arc spring pad Active CN103439548B (en)

Priority Applications (1)

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CN201310423493.5A CN103439548B (en) 2013-09-17 2013-09-17 The connection box of electric energy meter post of built-in arc spring pad

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Application Number Priority Date Filing Date Title
CN201310423493.5A CN103439548B (en) 2013-09-17 2013-09-17 The connection box of electric energy meter post of built-in arc spring pad

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CN103439548B true CN103439548B (en) 2015-11-11

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112344236B (en) * 2020-11-15 2022-11-22 国家电网有限公司 Shockproof and antiskid bridge-off lamp

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0850936A (en) * 1994-08-08 1996-02-20 Matsushita Seiko Co Ltd Electric wire connection terminal board
CN2492854Y (en) * 2001-07-30 2002-05-22 周贻学 Twist pin board at electric power meter end
CN2758775Y (en) * 2003-06-30 2006-02-15 华立集团有限公司 Current transformer terminal button box and electric energy meter terminal button box
CN201053974Y (en) * 2006-06-18 2008-04-30 杭州百富华隆电子技术有限公司 Clamped type face contact terminal box
CN201134516Y (en) * 2007-12-29 2008-10-15 丁高松 Wiring terminal station
CN202693646U (en) * 2012-05-22 2013-01-23 深圳市航天泰瑞捷电子有限公司 Wiring device for electric energy meter
CN202905957U (en) * 2012-12-06 2013-04-24 宁波欧科瑞连接器有限公司 Stranded conducting wire pressing protection device
CN203422407U (en) * 2013-09-17 2014-02-05 国家电网公司 Electric energy meter terminal with built-in arc-shaped spring washer

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0850936A (en) * 1994-08-08 1996-02-20 Matsushita Seiko Co Ltd Electric wire connection terminal board
CN2492854Y (en) * 2001-07-30 2002-05-22 周贻学 Twist pin board at electric power meter end
CN2758775Y (en) * 2003-06-30 2006-02-15 华立集团有限公司 Current transformer terminal button box and electric energy meter terminal button box
CN201053974Y (en) * 2006-06-18 2008-04-30 杭州百富华隆电子技术有限公司 Clamped type face contact terminal box
CN201134516Y (en) * 2007-12-29 2008-10-15 丁高松 Wiring terminal station
CN202693646U (en) * 2012-05-22 2013-01-23 深圳市航天泰瑞捷电子有限公司 Wiring device for electric energy meter
CN202905957U (en) * 2012-12-06 2013-04-24 宁波欧科瑞连接器有限公司 Stranded conducting wire pressing protection device
CN203422407U (en) * 2013-09-17 2014-02-05 国家电网公司 Electric energy meter terminal with built-in arc-shaped spring washer

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