CN113608160A - Joint junction box for metering gateway electric energy meter - Google Patents
Joint junction box for metering gateway electric energy meter Download PDFInfo
- Publication number
- CN113608160A CN113608160A CN202110881014.9A CN202110881014A CN113608160A CN 113608160 A CN113608160 A CN 113608160A CN 202110881014 A CN202110881014 A CN 202110881014A CN 113608160 A CN113608160 A CN 113608160A
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- knob switch
- junction box
- meter
- circuit
- jumper wire
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- 238000012360 testing method Methods 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 5
- 239000002184 metal Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/04—Testing or calibrating of apparatus covered by the other groups of this subclass of instruments for measuring time integral of power or current
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Connections Arranged To Contact A Plurality Of Conductors (AREA)
Abstract
The invention discloses a combined junction box for metering a gateway electric energy meter, which consists of a main body shell, a circuit component, a knob switch and a jumper, wherein the main body shell is made of fireproof materials and is used for protecting internal circuits of the junction box; the circuit assembly is used for conducting and switching a circuit in combination with the operation of the knob switch; the knob switch comprises 3 gears of a current measuring meter, a current measuring meter and a power changing meter, and when the knob switch is positioned at the gear of the power changing meter, a voltage line is disconnected; 1 jumper wire, which is connected with the circuit of the knob switch in parallel under normal state; when the knob switch is switched instantly, the jumper wire is pulled off, and the semi-external test equipment is switched into a loop. The problem of junction box safety coefficient low, complex operation, life hang down under the prior art is solved.
Description
Technical Field
The application relates to the technical field of electric energy meter metering equipment, in particular to a joint junction box for metering a gateway electric energy meter.
Background
The joint junction box for metering electric energy for the gateway electric energy meter is an important component of a metering secondary circuit, and has the functions of connecting secondary wires led out by a mutual inductor to the terminals of the electric energy meter after being connected in series and in parallel through the terminals at the joint junction box end, changing the on-off state of a testing circuit by changing the position of a poking piece on the junction box, and providing necessary conditions for on-site calibration with load, electricity utilization inspection and replacement of the electric energy meter of a metering device.
However, the combined junction box for measuring the electric energy used by the existing gateway electric energy meter has the following problems in the use process: when the field detection/meter change operation is carried out, the voltage plectrum needs to be disconnected, the current plectrum needs to be in short circuit, and the voltage plectrum and the current plectrum are restored to the original states after the work of the field detection/meter change operation is finished. However, due to the non-standard operation, the voltage and current plectrum are not reliably connected, which results in the omission and error recording of the electric quantity. Secondly, because the plectrum is through the copper bar lug connection in screw and the terminal box, so plectrum itself is electrified, when the staff operates the plectrum, just live working has brought the hidden danger for the safety work. Finally, when the voltage and current test wires are connected into the loop of the electric energy meter, a plurality of groups of screws in the junction box need to be operated respectively, the operation is time-consuming and labor-consuming on one hand, and on the other hand, the screw end parts are abraded due to the fact that the meter is checked and replaced at each time, screw failure is finally caused, and the risk of screw tripping is also accompanied.
Disclosure of Invention
In order to solve the problems, the application provides a combined junction box for metering a gateway electric energy meter, which consists of a main body shell, a circuit assembly, a knob switch and a jumper, wherein the main body shell is made of fireproof materials and is used for protecting internal circuits of the junction box;
the circuit assembly is used for conducting and switching a circuit in combination with the operation of the knob switch;
the knob switch comprises 3 gears of a current measuring meter, a current measuring meter and a power changing meter, and when the knob switch is positioned at the gear of the power changing meter, a voltage line is disconnected;
the jumper wire is connected with the circuit of the knob switch in parallel under the normal state; when the knob switch is switched instantly, the jumper wire is pulled off, and the semi-external test equipment is switched into a loop.
Preferably, the circuit assembly is wired with the wiring terminal and the test terminal through a PCB (printed Circuit Board) wire.
Preferably, the knob switch is composed of a knob shell, a rotating shaft, a knob cap, a metal terminal, a spring and a steel ball.
Preferably, when the current is measured through the junction box, the jumper wire is pulled out, the ammeter is inserted into the jumper wire hole, and the knob switch is adjusted to the current measuring gear.
Preferably, the knob switch is normally in the 0 gear, and the jumper is normally closed.
Drawings
FIG. 1 is a schematic structural diagram of a joint junction box for metering a gateway electric energy meter according to an embodiment of the present application;
FIG. 2 is a schematic diagram of the effect of a main board of the joint junction box for metering the gateway electric energy meter according to the embodiment of the present application;
FIG. 3 is a top view of a combined junction box for metering of gateway electric energy meters according to an embodiment of the present application;
FIG. 4 is a three-dimensional schematic diagram of a combined junction box for metering gateway electric energy meters according to an embodiment of the present application;
FIG. 5 is a dimension diagram of a combined junction box for metering of gateway electric energy meters according to an embodiment of the present application; (ii) a
FIG. 6 is an assembly drawing of the united junction box for gateway electric energy meter metering according to the embodiment of the present application;
Detailed Description
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of implementation in many different ways than those herein set forth and of similar import by those skilled in the art without departing from the spirit of this application and is therefore not limited to the specific implementations disclosed below.
The application provides a combined junction box for metering a gateway electric energy meter, the structural schematic diagram of which is shown in figure 1, the junction box consists of a main body shell, a circuit component, a knob switch and a jumper,
the main body shell is made of fireproof materials and is used for protecting internal circuits of the junction box; 2
The circuit assembly is used for conducting and switching a circuit in combination with the operation of the knob switch;
the knob switch comprises 3 gears of a current measuring meter, a current measuring meter and a power changing meter, and when the knob switch is positioned at the gear of the power changing meter, a voltage line is disconnected;
the jumper wire is connected with the circuit of the knob switch in parallel under the normal state; when the knob switch is switched instantly, the jumper wire is pulled off, and the semi-external test equipment is switched into a loop.
The main body shell is made of fireproof materials, and the shell has the characteristics of impact resistance, high strength, high temperature resistance, ageing resistance, corrosion resistance and the like.
The circuit assembly is wired with the wiring terminal and the test terminal through the PCB and is combined with the operation of a knob switch to conduct and switch the circuit.
The knob switch consists of a knob shell, a rotating shaft, a knob cap, a metal terminal, a spring, a steel ball and the like. And the knob switch is normally in a 0 gear, and the jumper is normally closed.
The working principle is as follows:
1A "0" gear state: the knob is normally at the 0 gear, the jumper plug-in is normally closed,
the current trend is as follows: 1, feeding to a-3-ammeter-4-5-6-7-8; voltage trend: 10 in-11-12-13-14 out.
2B "current measuring" gear state: when measuring current, firstly, the 'jumper wire' is pulled out, then the ammeter is inserted into the jumper wire hole (the ammeter is connected in series on the circuit), then the knob is screwed to the 'current measuring' gear,
the current trend is as follows: 1 in-3-4-5-9 (by an ammeter) -7-8 out; voltage trend: 10 in-11-12-13-14 out.
(after the current is measured, the gear is screwed to the '0' gear, the ammeter is pulled out, and a 'jumper' is plugged in at the same time), and the current trend is like '1A'.
3C3 "Change Meter" Shift State: when the meter is changed, the knob is screwed to the gear of the electricity changing meter (2-6 points of short circuit),
the current trend is as follows: 1, enter-2-6-7-8 and exit; voltage trend: 12-13 are disconnected.
(note: ensuring that a jumper wire is inserted into a jumper wire hole during meter replacement to prevent the switching circuit from being instantly broken, and screwing the gear to '0' after the meter replacement is finished).
The labels "A", "B" and "C" are three voltage testing holes. The red voltage line is on the top layer of the PCB and the cyan is on the bottom layer of the PCB.
Fig. 2 shows a main board effect schematic diagram of the junction box, and fig. 3 and 4 show a top view and a three-dimensional effect schematic diagram of the combined junction box for gateway electric energy meter metering. The size of the terminal box is preferably as shown in fig. 5, and the unit is: and (4) millimeter.
Fig. 6 shows a schematic diagram of a combined junction box device for metering gateway electric energy meters, which illustrates how each component is assembled and connected, and names of each component.
The application provides a be used for joint terminal box for gateway electric energy meter measurement has following advantage and effect: 1) appearance design is simple and clear, cancels numerous screw nodes, and factor of safety is high.
2) The fixing screw of the binding post adopts a countersunk head structure design, so that short circuit caused by easy touch of metal is avoided;
3) when the current is measured and the meter is changed, the operation of wearing an insulating glove is not needed, and the circuit is switched by shifting directly through a knob switch, so that the live operation is avoided, and the safety and the reliability are realized;
4) the inner part is wired through a PCB, the installation is convenient and rapid, the operation is simple, the time and the labor are saved, and the working efficiency is improved by more than 60 percent;
5) size, volume dimension, wall mounting screw hole position etc. are compatible with current terminal box, can directly replace.
Finally, it should be noted that: although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention.
Claims (5)
1. A combined junction box for metering a gateway electric energy meter comprises a main body shell, a circuit component, a knob switch and a jumper wire, and is characterized in that,
the main body shell is made of fireproof materials and is used for protecting internal circuits of the junction box;
the circuit assembly is used for conducting and switching a circuit in combination with the operation of the knob switch;
the knob switch comprises 3 gears of a current measuring meter, a current measuring meter and a power changing meter, and when the knob switch is positioned at the gear of the power changing meter, a voltage line is disconnected;
the jumper wire is connected with the circuit of the knob switch in parallel under the normal state; when the knob switch is switched instantly, the jumper wire is pulled off, and the semi-external test equipment is switched into a loop.
2. The connector of claim 1, wherein the circuit assembly is wired to the wire terminals and the test terminals by PCB traces.
3. The connector of claim 1, wherein the turn button switch is comprised of a turn button housing, a shaft, a turn button cap, a metal terminal, a spring, and a steel ball.
4. The junction box of claim 1, wherein when the junction box is used for measuring current, the jumper wire is pulled out, the ammeter is inserted into the jumper wire hole, and the knob switch is adjusted to a current measuring gear.
5. The junction box of claim 1, wherein said knob switch is normally in 0 position and the jumper is normally closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110881014.9A CN113608160A (en) | 2021-08-02 | 2021-08-02 | Joint junction box for metering gateway electric energy meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110881014.9A CN113608160A (en) | 2021-08-02 | 2021-08-02 | Joint junction box for metering gateway electric energy meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113608160A true CN113608160A (en) | 2021-11-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110881014.9A Pending CN113608160A (en) | 2021-08-02 | 2021-08-02 | Joint junction box for metering gateway electric energy meter |
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| Country | Link |
|---|---|
| CN (1) | CN113608160A (en) |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102723774A (en) * | 2012-06-29 | 2012-10-10 | 黑龙江省电力有限公司检修公司 | Bridge type current switching device and current switching method using same |
| CN103558429A (en) * | 2013-10-31 | 2014-02-05 | 国网山东省电力公司泰安供电公司 | Switch type electric energy measuring terminal box |
| CN203551766U (en) * | 2013-10-31 | 2014-04-16 | 国网山东省电力公司泰安供电公司 | Button type electric energy metering junction box |
| CN104007294A (en) * | 2014-06-06 | 2014-08-27 | 国家电网公司 | Overhead line parameter measurement wiring device |
| CN203849316U (en) * | 2014-05-27 | 2014-09-24 | 国家电网公司 | Multifunctional current signal sampling box used for relative dielectric loss and capacitance ratio measurement |
| CN204522904U (en) * | 2015-02-12 | 2015-08-05 | 广东恒联食品机械有限公司 | A kind of speed regulator for mixer |
| CN107345976A (en) * | 2017-09-07 | 2017-11-14 | 贵州电网有限责任公司 | A kind of metering secondary terminal box |
| CN207817028U (en) * | 2017-12-20 | 2018-09-04 | 上海国缆智能电气有限公司 | A kind of three-phase separated time electric energy meter novel integrated terminal box |
| CN108548947A (en) * | 2018-03-30 | 2018-09-18 | 上海电力学院 | A kind of guillotine type electric energy metering combined wiring box |
| CN109085396A (en) * | 2018-08-30 | 2018-12-25 | 中国电力科学研究院有限公司 | With the multifunctional combined terminal box of electrical energy measurement for changing table tooling |
| CN109085402A (en) * | 2018-08-30 | 2018-12-25 | 中国电力科学研究院有限公司 | The multifunctional combined terminal box of electrical energy measurement |
| CN109387805A (en) * | 2018-10-24 | 2019-02-26 | 国网山东省电力公司海阳市供电公司 | A kind of terminal box of three-level metering device series wiring band scene series connection verifying function |
| CN110196347A (en) * | 2019-05-27 | 2019-09-03 | 国家电网有限公司 | A kind of electrical energy measurement joint connecting terminal block |
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-
2021
- 2021-08-02 CN CN202110881014.9A patent/CN113608160A/en active Pending
Patent Citations (14)
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| CN103558429A (en) * | 2013-10-31 | 2014-02-05 | 国网山东省电力公司泰安供电公司 | Switch type electric energy measuring terminal box |
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| CN203849316U (en) * | 2014-05-27 | 2014-09-24 | 国家电网公司 | Multifunctional current signal sampling box used for relative dielectric loss and capacitance ratio measurement |
| CN104007294A (en) * | 2014-06-06 | 2014-08-27 | 国家电网公司 | Overhead line parameter measurement wiring device |
| CN204522904U (en) * | 2015-02-12 | 2015-08-05 | 广东恒联食品机械有限公司 | A kind of speed regulator for mixer |
| CN107345976A (en) * | 2017-09-07 | 2017-11-14 | 贵州电网有限责任公司 | A kind of metering secondary terminal box |
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| CN108548947A (en) * | 2018-03-30 | 2018-09-18 | 上海电力学院 | A kind of guillotine type electric energy metering combined wiring box |
| CN109085396A (en) * | 2018-08-30 | 2018-12-25 | 中国电力科学研究院有限公司 | With the multifunctional combined terminal box of electrical energy measurement for changing table tooling |
| CN109085402A (en) * | 2018-08-30 | 2018-12-25 | 中国电力科学研究院有限公司 | The multifunctional combined terminal box of electrical energy measurement |
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Application publication date: 20211105 |