CN203422407U - Electric energy meter terminal with built-in arc-shaped spring washer - Google Patents
Electric energy meter terminal with built-in arc-shaped spring washer Download PDFInfo
- Publication number
- CN203422407U CN203422407U CN201320575511.7U CN201320575511U CN203422407U CN 203422407 U CN203422407 U CN 203422407U CN 201320575511 U CN201320575511 U CN 201320575511U CN 203422407 U CN203422407 U CN 203422407U
- Authority
- CN
- China
- Prior art keywords
- electric energy
- energy meter
- terminal
- built
- fastening screw
- 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
Links
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000002788 crimping Methods 0.000 description 6
- 239000004020 conductor Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
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Abstract
The utility model relates to an electric energy meter terminal with a built-in arc-shaped spring washer, and particularly relates to a connection way between an electric energy meter wiring terminal and a wire, pertaining to the technical field of electrical equipment. The technical scheme is that the electric energy meter terminal with the built-in arc-shaped spring washer comprises a terminal body (8); a wiring terminal (1) and a bottom terminal wire hole (5) are arranged on the terminal body (8); a fastening screw rod (4) and a fastening screw hole (6) are arranged on the wiring terminal (1) and the bottom terminal wire hole (5) respectively in the vertical direction; and an arc-shaped spring washer (10) is arranged inside the wiring terminal (1) and located below the fastening screw rod (4). The electric energy meter terminal with the built-in arc-shaped spring washer has the beneficial effects that the wire core is protected; the fastening screw can be prevented from getting loose and falling off due to vibration; the contact area is increased; phenomena that the connection point of the wiring terminal gives out heat and the electric energy meter is burnt down are eliminated; the service life of the wiring terminal and the wire is prolonged; the structure is simple; and the use is convenient.
Description
Technical field
The utility model relates to a kind of connection box of electric energy meter post of built-in arc spring pad, the particularly connected mode of connection box of electric energy meter terminal and wire, belongs to electrical equipment technical field.
Background technology
At present, on market, widely used connection box of electric energy meter terminal all adopts screw to screw crimping mode, realizes and being connected of wire.With reference to accompanying drawing 1, wire core is placed in connection terminal, tighten fastening screw screw mandrel, realization is connected with wire.Although this crimping mode also can realize and being fastenedly connected of wire, but screw screws excessive, can damage the core of insulated conductor, there is crimping trace in various degree, in the course of time just can make the structural strength of wire greatly reduce, even there will be disconnected strand or short-term phenomenon, and then cause the contact resistance value at connection terminal place to increase; If screw screws too small, though reduced the impression degree of screw to wire core, screw bottom does not fully contact with wire wicking surface, can cause too contact resistance value to increase.In addition, even if under the prerequisite fully contacting with wire core in screw bottom, be also a screw rod point and the contacting of conductor thread core surface.Because size and the contact area size of contact resistance value is inversely proportional to, therefore contacting of point and face, directly makes contact area reduce, resistance value increase.As can be seen here, above-mentioned factor all can cause contact resistance value to increase.When wire current flowing, will generate heat at connection terminal place, when especially large by load current, the degree of heat of XXL junction more, accelerate the oxidation process of wire core, greatly reduced the serviceable life of connection terminal and wire, also very easily cause electric energy meter tail and burn phenomenon, even produce larger power outage simultaneously.In addition; on the electrical equipment of day-to-day operation, often can there is resonance effect; and vibration meeting produces harmful effect loosening and even that come off to the fastening screw screw mandrel having screwed for a long time; can cause equally electric energy meter and connecting position of wires generation resistance value to increase, tie point heating and the consequence of burning electric energy meter tail.
Utility model content
The utility model object is to provide a kind of connection box of electric energy meter post of built-in arc spring pad, and by the mode of connection terminal arc spring shim and the crimping of wire core, realization is connected with wire, solves the problem existing in background technology.
The technical solution of the utility model 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 line hole, in the vertical direction in connection terminal and bottom binding post line hole, be respectively equipped with fastening screw screw mandrel, fastening screw, in connection terminal and below being positioned at fastening screw screw mandrel, be provided with arc spring pad.
Described connection terminal vertical direction is provided with two fastening screw screw mandrels, two fastening screw screw mandrels below be positioned at wire core hole respectively correspondence be provided with arc spring pad.
Described arc spring pad is " 3 " font." 3 " font arc spring pad produces reacting force upwards under the effect of pad spring, make holding screw more firm, and can make arc spring pad fully contact with wire core, realize the crimping of face and face, increase contact area, reduced contact resistance.
In described binding post line hole, two lateral incisions are greater than the square hole of holding screw shank diameter size.
The beneficial effects of the utility model are: protected wire core; prevented that holding screw from becoming flexible and coming off because of what vibration produced; increased contact area; stopped the heating of connection terminal tie point place and burnt electric energy meter phenomenon; extended the serviceable life of connection terminal and wire; there is feature simple in structure, easy to use.
Accompanying drawing explanation
Fig. 1 is background technology structural representation;
Fig. 2 is the utility model front view;
Fig. 3 is the utility model side view;
Fig. 4 is the utility model arc spring pad enlarged drawing;
In figure: connection terminal 1, wire 2, tightening screw cap 3, fastening screw screw mandrel 4, bottom binding post line hole 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 utility model is described in further detail.
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 line hole 5, in the vertical direction in connection terminal 1 and bottom binding post line hole 5, be respectively equipped with two fastening screw screw mandrels 4, two fastening screws 6, in two fastening screw screw mandrel 4 bottom binding post line holes, below 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 be along moving up and down in the framework of square hole to reach arc spring pad, arc spring pad 10 is " 3 " font, " 3 " font spring also can fully be fitted with low edge, square hole, and under the effect of pad spring, produce reacting force upwards, make holding screw more firm, prevented from vibrating becoming flexible and coming off of producing.
The course of work: the wire core of wire 2 is inserted in connection terminal 1, rotation tightening 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 approximate, can make arc spring pad fully contact with core, realized the crimping of face and face, increased contact area, reduced contact resistance, avoided the large problem of contact resistance causing because of point and face contact type.Meanwhile, fastening screw screw mandrel acts on arc spring pad, and due to arc spring pad material, to compare copper conductor material compressive resistance large, can not cause impression phenomenon, reached the object of guardwire core.While 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 (4)
1. the connection box of electric energy meter post of a built-in arc spring pad, it is characterized in that having binding post body (8), binding post body (8) is provided with connection terminal (1) and bottom binding post line hole (5), in the vertical direction in connection terminal (1) and bottom binding post line hole (5), be respectively equipped with fastening screw screw mandrel (4), fastening screw (6), in connection terminal (1) and below being positioned at fastening screw screw mandrel (4), be provided with arc spring pad (10).
2. the connection box of electric energy meter post of built-in arc spring pad according to claim 1, it is characterized in that described connection terminal (1) vertical direction is provided with two fastening screw screw mandrels (4), two fastening screw screw mandrels (4) belows be positioned at connection terminal (1) respectively correspondence be provided with arc spring pad (10).
3. the connection box of electric energy meter post of built-in arc spring pad according to claim 1 and 2, is characterized in that described arc spring pad (10) is " 3 " font.
4. the connection box of electric energy meter post of built-in arc spring pad according to claim 1 and 2, is characterized in that two lateral incisions in described binding post line hole are greater than the square hole of holding screw shank diameter size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320575511.7U CN203422407U (en) | 2013-09-17 | 2013-09-17 | Electric energy meter terminal with built-in arc-shaped spring washer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320575511.7U CN203422407U (en) | 2013-09-17 | 2013-09-17 | Electric energy meter terminal with built-in arc-shaped spring washer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203422407U true CN203422407U (en) | 2014-02-05 |
Family
ID=50021502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320575511.7U Expired - Fee Related CN203422407U (en) | 2013-09-17 | 2013-09-17 | Electric energy meter terminal with built-in arc-shaped spring washer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203422407U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103439548A (en) * | 2013-09-17 | 2013-12-11 | 国家电网公司 | Electric energy meter binding post internally provided with arc-shaped spring washer |
| CN104793029A (en) * | 2015-05-05 | 2015-07-22 | 国家电网公司 | Spring compression type electric energy measuring and wiring device with control loop access function |
| CN107611628A (en) * | 2017-09-30 | 2018-01-19 | 国家电网公司 | A kind of power electronic equipment binding post |
-
2013
- 2013-09-17 CN CN201320575511.7U patent/CN203422407U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103439548A (en) * | 2013-09-17 | 2013-12-11 | 国家电网公司 | Electric energy meter binding post internally provided with arc-shaped spring washer |
| CN103439548B (en) * | 2013-09-17 | 2015-11-11 | 国家电网公司 | The connection box of electric energy meter post of built-in arc spring pad |
| CN104793029A (en) * | 2015-05-05 | 2015-07-22 | 国家电网公司 | Spring compression type electric energy measuring and wiring device with control loop access function |
| CN107611628A (en) * | 2017-09-30 | 2018-01-19 | 国家电网公司 | A kind of power electronic equipment binding post |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140205 Termination date: 20180917 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |