CN213517511U - Three-phase three-wire electric energy meter junction box wiring inspection tool - Google Patents
Three-phase three-wire electric energy meter junction box wiring inspection tool Download PDFInfo
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- CN213517511U CN213517511U CN202022482886.1U CN202022482886U CN213517511U CN 213517511 U CN213517511 U CN 213517511U CN 202022482886 U CN202022482886 U CN 202022482886U CN 213517511 U CN213517511 U CN 213517511U
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- 238000007689 inspection Methods 0.000 title claims abstract description 32
- 238000001514 detection method Methods 0.000 claims abstract description 38
- 238000009434 installation Methods 0.000 claims abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 210000001503 joint Anatomy 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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Abstract
The utility model discloses a three-way electric energy meter terminal box wiring inspection tool of three-phase has solved the problem that whether the wiring of terminal box among the prior art can't judge very fast and connect or leak and connect, has the beneficial effect that directly perceived butt joint result shows, is convenient for survey, and concrete scheme is as follows: the utility model provides a three-phase three-wire electric energy meter terminal box wiring inspection tool, includes the casing, sets up detection circuitry in the casing, and detection circuitry can contact with the wiring stake of terminal box, and detection circuitry sets up switch, power, resistance and indicator, and indicator and switch are respectively through the casing installation, and the indicator exposes in the casing surface.
Description
Technical Field
The utility model belongs to the technical field of the electric energy meter and specifically relates to a three-phase three-wire electric energy meter terminal box wiring inspection tool.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
The existing junction box is a special junction box of a standard junction box of an electric energy metering device, electrical equipment such as an electric energy meter, an electrical instrument, leakage protection and the like is safely exchanged or checked on site under the condition of load, but when the junction box is used for wiring inspection, whether wiring is correct or whether conditions such as virtual connection, leakage connection and the like exist cannot be judged through visual inspection, and if the conditions such as the virtual connection and the leakage connection exist, certain difficulty is brought to the work of working personnel.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims at providing a three-way electric energy meter terminal box wiring inspection tool of three-phase, whether the accessible pilot lamp judges the circuit and puts through, comparatively conveniently judges the wiring condition.
In order to achieve the above purpose, the present invention is realized by the following technical solution:
the utility model provides a three-phase three-wire electric energy meter terminal box wiring inspection tool, includes the casing, sets up detection circuitry in the casing, and detection circuitry can contact with the wiring stake of terminal box, and detection circuitry sets up switch, power, resistance and indicator, and indicator and switch are respectively through the casing installation, and the indicator exposes in the casing surface.
Foretell inspection tool, casing set up the wiring stake contact of detection circuitry and terminal box, and under the detection circuitry intercommunication condition, whether the condition of wiring is judged correctly comparatively directly perceivedly to the accessible indicating part, and is very directly perceived, judges easily, has also corresponding staff's work of having made things convenient for.
According to the wiring inspection tool for the junction box of the three-phase three-wire electric energy meter, in order to ensure that the detection circuit inside the shell can be in contact with the detection circuit of the junction box and smooth detection of the detection circuit is ensured, one side of the shell is provided with the clamping groove, the clamping groove can be clamped with one row of wiring piles of the junction box, and the shell is conveniently buckled on the wiring piles of the junction box through the arrangement of the clamping groove.
According to the wiring inspection tool for the junction box of the three-phase three-wire electric energy meter, aiming at the three-phase three-wire electric energy meter, the detection circuit comprises a plurality of detection circuits.
According to the wiring inspection tool for the junction box of the three-phase three-wire electric energy meter, the shell is further provided with a mode selection switch, and the mode selection switch can control the switch of part of the detection circuit.
The three-phase three-wire electric energy meter junction box wiring inspection tool comprises four detection circuits, namely a first circuit and a third circuit for detecting an A-phase current loop and an AB voltage loop of an electric energy meter, and a second circuit and a fourth circuit for detecting a C-phase current loop and a CB voltage loop of the electric energy meter.
According to the wiring inspection tool for the junction box of the three-phase three-wire electric energy meter, the switches of the first circuit and the second circuit can be connected with the mode selection switch.
According to the wiring inspection tool for the junction box of the three-phase three-wire electric energy meter, the first circuit and the second circuit share the power supply and the resistor.
According to the wiring inspection tool for the junction box of the three-phase three-wire electric energy meter, the indicator light is a light emitting diode.
According to the wiring inspection tool for the junction box of the three-phase three-wire electric energy meter, in order to facilitate judgment and check, the indicating piece and the switch are arranged on the other side, opposite to the clamping groove, of the shell, and the marks of the detection loop are arranged on the surface of the shell at the corresponding switch and the indicating piece.
Above-mentioned the utility model has the advantages as follows:
1) the utility model discloses a providing of inspection tool, the casing sets up the wiring stake contact of detection circuitry and terminal box, and under the detection circuitry intercommunication condition, whether the condition of wiring is judged correctly comparatively audio-visually to the accessible indicator, and is very audio-visual, judges easily, also corresponding staff's work of having made things convenient for.
2) The utility model discloses a casing sets up the draw-in groove, can guarantee with the block of terminal box wiring stake, guarantees detection circuitry's intercommunication.
3) The utility model discloses a set up the switch at the casing, be convenient for to detection circuitry's control, each switch all sets up the voltage or the current sign of corresponding circuit with the corresponding position department of indicator moreover, further makes things convenient for the judgement to the wiring condition.
Drawings
The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without unduly limiting the scope of the invention.
Fig. 1 is a top view of a three-phase three-wire electric energy meter junction box wiring inspection tool according to one or more embodiments of the present invention.
Fig. 2 is a schematic diagram of an internal detection circuit of a three-phase three-wire electric energy meter junction box wiring inspection tool according to one or more embodiments of the present invention.
Fig. 3 is a schematic diagram of the junction box and the electric energy meter and the transformer according to one or more embodiments of the present invention.
In the figure: the spacing or dimensions between each other are exaggerated to show the location of the various parts, and the schematic is shown only schematically.
Wherein: 1. the LED lamp comprises a switch, 2 light emitting diodes, 3 a mode selection switch, 4 an AB voltage loop, 5 an A phase current loop, 6 a C phase current loop, 7 a BC voltage loop, 8 a power supply, 9 a junction box, 10 a resistor and 11 a shell.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention. As used herein, the singular forms "a", "an", and/or "the" are intended to include the plural forms as well, unless the invention expressly state otherwise, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof;
for convenience of description, the words "upper", "lower", "left" and "right" in the present application, if any, merely indicate correspondence with the upper, lower, left and right directions of the drawings themselves, and do not limit the structure, but merely facilitate the description of the present invention and simplify the description, rather than indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Term interpretation section: the terms "mounted," "connected," "fixed," and the like in the present invention are to be understood in a broad sense, for example, they may be fixedly connected, detachably connected, or integrated; the two components can be connected mechanically or electrically, directly or indirectly through an intermediate medium, or connected internally or in an interaction relationship, and specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Just as the background art introduces, exist among the prior art and can't judge whether correct problem of wiring of mutual-inductor and electric energy meter, in order to solve as above technical problem, the utility model provides a three-way electric energy meter terminal box wiring inspection tool of three-phase.
The utility model discloses an among the typical embodiment, refer to fig. 1 and show, a three-way electric energy meter terminal box wiring inspection tool of three-phase, including casing 11, the inside detection circuitry that sets up of casing, one side of casing 11 has the draw-in groove, and the casing can detain the terminal box 9 of locating the three-way electric energy meter of three-phase through the draw-in groove, specifically covers one row of screw of terminal box, realizes the inboard detection circuitry of casing and the contact of the binding post of terminal box promptly, and casing draw-in groove inboard sets up the sense terminal for with the screw contact, and realize the inboard detection circuitry of casing and the intercommunication of screw.
The casing surface is provided with marks of the detection circuits at the corresponding switches and indicators, which marks may be respectively circular, specifically the respective marks of the AB voltage circuit 4, the a phase current circuit 5, the C phase current circuit 6 and the BC voltage circuit in fig. 2.
Referring to fig. 2, the detection circuit includes 4, the first circuit and the second circuit share a power supply and a resistor, the first circuit and the second circuit are respectively provided with a switch and a light emitting diode, the first circuit is an electric energy meter AB voltage loop for measuring the on/off of the electric energy meter AB voltage loop, and the second circuit is an electric energy meter BC voltage loop for measuring the on/off of the electric energy meter BC voltage loop.
The third circuit and the fourth circuit respectively comprise a power supply 8, a resistor 10, a switch 1 and a light emitting diode 2, the third circuit is used for detecting the A-phase current loop of the electric energy meter, and the fourth circuit is used for detecting the C-phase current loop of the electric energy meter.
It will of course be appreciated that in some examples, the light emitting diodes act as indicator lights.
The inspection tool shell is provided with a groove, the corresponding diodes of each circuit are exposed out of the shell through the groove, so that a user can conveniently observe, and after the wiring of the junction box is correct, the light-emitting diodes 2 in the corresponding detection circuit can be lightened to judge the condition of the junction box 9.
The top surface of the shell is provided with a display area, the display area is provided with a switch 1 of each detection circuit, a mode selection switch 3 (selecting an electric energy meter or a mutual inductor) and the light-emitting diode, the mode selection switch can control the switches of the first circuit and the second circuit, namely the respective switches of the first circuit and the second circuit can be connected with the mode selection switch, and the connection of the selection circuit and the electric energy meter or the mutual inductor is selected through the mode selection switch.
Referring to fig. 3, the central line of the junction box in the length direction is taken as a dividing line, the upper part is a wiring part of an electric energy meter end, the lower part is a wiring part of a transformer end, and all voltage poking pieces and current poking pieces of the junction box need to be opened in the installation process of an inspection tool.
In a correct wiring state, A, B, C three-phase voltage connection wires of the junction box are connected through a voltage transformer, transformer ends are connected through a metering transformer, and electric energy meter ends are connected through an internal transformer of the electric energy meter; and the phase current input and output ends of the A (C) phase current are connected through a current transformer, the transformer ends are connected through a metering transformer, and the electric energy meter ends are connected through an internal transformer of the electric energy meter, so that when an inspection tool is used for inspection, an internal inspection circuit of the inspection tool can be connected with the circuits to form a current path, and the light emitting diode emits light. If the wiring is misconnected or virtual connected, the current path cannot be formed, and workers can carry out targeted inspection and correction on the part of the circuit.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a three-phase three-wire electric energy meter terminal box wiring inspection tool which characterized in that, includes the casing, sets up detection circuitry in the casing, and detection circuitry can contact with the wiring stake of terminal box, and detection circuitry sets up switch, power, resistance and indicator, and indicator and switch are respectively through the casing installation, and the indicator exposes in the casing surface.
2. The connection inspection tool for the junction box of the three-phase three-wire electric energy meter according to claim 1, wherein a slot is formed on one side of the housing, and the slot can be engaged with one row of connection piles of the junction box.
3. The tool of claim 1 or 2, wherein the detection circuit comprises a plurality of detection circuits.
4. The tool of claim 1, wherein the housing further comprises a mode selector switch, and the mode selector switch controls a portion of the detection circuit.
5. The tool of claim 4, wherein the detection circuits comprise four detection circuits, including a first circuit and a third circuit for detecting the A-phase current loop and the AB voltage loop of the electric energy meter, and a second circuit and a fourth circuit for detecting the C-phase current loop and the CB voltage loop of the electric energy meter.
6. The tool of claim 5, wherein the switches of the first and second circuits are connectable to the mode selector switch.
7. The tool of claim 5, wherein the first circuit and the second circuit share the power source and the resistor.
8. The tool of claim 1, wherein the indicator is a light emitting diode.
9. The three-phase three-wire electric energy meter junction box wiring inspection tool according to claim 2, wherein the indicator and the switch are disposed on the other side of the housing relative to the card slot, and the housing surface is provided with the mark of the detection circuit at the corresponding switch and indicator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022482886.1U CN213517511U (en) | 2020-10-29 | 2020-10-29 | Three-phase three-wire electric energy meter junction box wiring inspection tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022482886.1U CN213517511U (en) | 2020-10-29 | 2020-10-29 | Three-phase three-wire electric energy meter junction box wiring inspection tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213517511U true CN213517511U (en) | 2021-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022482886.1U Expired - Fee Related CN213517511U (en) | 2020-10-29 | 2020-10-29 | Three-phase three-wire electric energy meter junction box wiring inspection tool |
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| Country | Link |
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| CN (1) | CN213517511U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113640710A (en) * | 2021-08-13 | 2021-11-12 | 深圳市新威尔电子有限公司 | Channel crossing automatic detection method |
| CN113759154A (en) * | 2021-09-27 | 2021-12-07 | 国网山东省电力公司潍坊供电公司 | Metering junction box with short circuit prompting function and short circuit operation method thereof |
-
2020
- 2020-10-29 CN CN202022482886.1U patent/CN213517511U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113640710A (en) * | 2021-08-13 | 2021-11-12 | 深圳市新威尔电子有限公司 | Channel crossing automatic detection method |
| CN113640710B (en) * | 2021-08-13 | 2024-04-09 | 深圳市新威尔电子有限公司 | Automatic detection method for channel crossing |
| CN113759154A (en) * | 2021-09-27 | 2021-12-07 | 国网山东省电力公司潍坊供电公司 | Metering junction box with short circuit prompting function and short circuit operation method thereof |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210622 |