CN104090138A - Binding post enabling single-phase watt-hour meter to be replaced without power cut - Google Patents

Abstract

The embodiment of the invention provides a binding post enabling a single-phase watt-hour meter to be replaced without a power cut. The binding post enabling the single-phase watt-hour meter to be replaced without a power cut comprises a terminal box and a meter replacement plug. The terminal box is provided with four connecting units. Each connecting unit is provided with an upper clamping piece, a lower clamping piece and a jack located between the upper clamping piece and the lower clamping piece, an upper metal dome and a lower metal dome are arranged in the jack, the upper metal dome is connected with the upper clamping piece, the lower metal dome is connected with the lower clamping piece, and the upper metal dome is in contact with the lower metal dome. The meter replacement plug is provided with four metal male tabs. The four metal male tabs are matched with the four jacks. The meter replacement plug is used for being plugged into the terminal box. When the meter replacement plug is plugged into the terminal box, an incoming live wire is in short circuit connection with an indoor live wire, an incoming null line is in short circuit connection with an indoor null line, and electricity utilization of resident users cannot be influenced no matter what kind of operation is conducted on the single-phase watt-hour meter at this time; besides, the problem that interruption of power supply of the resident users is caused by an existing replacement mode is solved.

Description

A connection terminal for replacing a single-phase electric energy meter without power failure

technical field

The present application relates to the field of electric power technology, and more specifically, relates to a connection terminal for replacing a single-phase electric energy meter without power failure.

Background technique

With the rapid development of my country's economy, the demand for electricity in all walks of life is increasing. At the same time, the requirements of power customers for the service level of power companies are also constantly increasing. The State Grid Corporation of China even put forward the "Ten Commitments for Power Supply Services" to provide services for residential users with different natures of electricity consumption in different regions. Among them, the regulations for emergency repairs of electricity: urban areas shall not exceed 45 minutes, and rural areas shall not exceed 90 minutes. It is not more than 3 hours in remote areas; it is also stipulated that for residential users who install meters and receive electricity, power must be transmitted within 3 working days. These regulations have restricted the power outage time of residential users.

At present, for single-phase electric energy meters, when they need to be replaced due to meter failure, customer application for calibration, or due rotation, etc., the replacement method adopted is that the metering staff of the power supply bureau arrive at the resident user site, power off the electric energy meter, and then Replace or dispose of. This method will inevitably cause the interruption of power supply of residential users, and even cause property damage.

Contents of the invention

In view of this, this application provides a terminal for replacing single-phase electric energy meters without power failure, which is used to continuously supply power to residential users when replacing single-phase electric energy meters, so as to solve the problem that existing replacement methods will inevitably cause power supply interruptions for residential users.

In order to achieve the above purpose, the proposed scheme is as follows:

A connection terminal for replacing a single-phase electric energy meter without power failure, including a terminal box and a meter replacement plug, wherein:

The terminal box is provided with four communication units, and the communication unit is provided with an upper clamp, a lower clamp and a socket between the upper clamp and the lower clamp, and the socket is provided with a The upper metal shrapnel connected to the upper clip and the lower metal shrapnel connected to the lower clip; the upper metal shrapnel is in contact with the lower metal shrapnel;

The four connected units are respectively a first connected unit, a second connected unit, a third connected unit and a fourth connected unit;

The upper clip of the first communication unit is used to connect the live wire incoming terminal of the single-phase electric energy meter, and the lower clip is used to connect the live wire of the single-phase electric power;

The upper clip of the second communication unit is used to connect the outgoing terminal of the live wire of the single-phase electric energy meter, and the lower clip is used to connect the indoor live wire of the resident user;

The upper clip of the third connection unit is used to connect the neutral wire incoming terminal of the single-phase electric energy meter, and the lower clip is used to connect the neutral wire of the single-phase mains;

The upper clip of the fourth connection unit is used to connect the neutral line outgoing terminal of the single-phase electric energy meter, and the lower clip is used to connect the indoor neutral line of the residential user;

The meter changing plug is provided with four metal inserts, which are respectively the first insert, the second insert, the third insert and the fourth insert, the first insert is connected with the second insert, and the The third insert is connected to the fourth insert;

The position of the first insert matches the position of the jack of the first communication unit; the position of the second insert matches the position of the jack of the second communication unit; the third The position of the insert matches the position of the jack of the third communication unit; the position of the fourth insert matches the position of the jack of the fourth communication unit;

The meter changing plug is used to be inserted into the terminal box. When the meter changing plug is inserted into the terminal box, the metal insert is interposed between the upper metal elastic piece and the lower metal elastic piece, and the The surfaces of the inserts are in close contact with the upper metal shrapnel and the lower metal shrapnel respectively.

Preferably, an insulating layer is provided on the surface of the metal insert that is in contact with the upper metal elastic piece.

Preferably, the upper metal dome includes a first upper metal dome and a second upper metal dome;

The lower metal shrapnel includes a first lower metal shrapnel and a second lower metal shrapnel;

The first upper metal dome is in contact with the first lower metal dome;

The second upper metal dome is in contact with the second lower metal dome.

Preferably, the communication unit is provided with a fastening screw; when the fastening screw is tightened, its top end presses the second lower metal elastic piece to the second upper metal elastic piece.

Preferably, the upper clip includes a wire insertion hole and at least one crimping screw; the lower clip includes a wire insertion hole and at least one crimping screw.

Preferably, it also includes an upper cover fixed on the terminal box;

The shape of the upper cover matches the upper surface of the terminal box;

The upper cover is provided with four through holes matching with the jacks for accommodating the insertion of the insertion pieces.

Preferably, the meter changing plug includes an upper shell and a lower plate;

The plug is arranged on the lower plate, and part of it leaks out of the lower plate downward;

The upper shell is connected with the lower plate to cover the upper surface of the lower plate.

Preferably, positioning pins are arranged on the lower plate;

Positioning holes matching the positioning bolts are arranged on the terminal box.

Preferably, it also includes an outer cover covering the through hole;

The outer cover is provided with a thin hole for locking it on the upper cover for setting a lead seal.

Preferably, the terminal box is provided with a fixing piece for fixing it on the bottom plate of the junction box.

It can be seen from the above technical solutions that this embodiment provides a terminal for replacing a single-phase electric energy meter without power failure, including a terminal box and a meter replacement plug. The terminal box is provided with four communication units, and each communication unit is provided with an upper clamp, a lower clamp and a socket between the upper clamp and the lower clamp, and an upper clamp connected with the upper clamp is arranged in the socket. The metal shrapnel and the lower metal shrapnel connected with the lower clip, the upper metal shrapnel and the lower metal shrapnel are in contact; the four communication units are respectively the first communication unit, the second communication unit, the third communication unit and the fourth communication unit; The upper clip of the first connection unit is used to connect the live wire input terminal of the single-phase electric energy meter, and the lower clip is used to connect the live wire of the single-phase electric power; the upper clip of the second connection unit is used to connect the single-phase electric energy meter The live wire outlet terminal and the lower clip are used to connect the indoor live wire of the resident user; the upper clip of the third connection unit is used to connect the zero line incoming terminal of the single-phase electric energy meter, and the lower clip is used to connect the zero line of the single-phase utility power. line; the upper clip of the fourth connection unit is used to connect the neutral line outlet terminal of the single-phase electric energy meter, and the lower clip is used to connect the indoor neutral line of the residential user. The meter changing plug is provided with four metal inserts, which are respectively the first insert, the second insert, the third insert and the fourth insert, the first insert is connected with the second insert, the third insert is connected with the The fourth insertion piece is connected; the position of the first insertion piece matches the position of the jack of the first communication unit; the position of the second insertion piece matches the position of the jack of the second communication unit; the position of the third insertion piece The position matches the position of the jack of the third communication unit; the position of the fourth insertion piece matches the position of the jack of the fourth communication unit. The meter changing plug is used to insert into the terminal box. When the meter changing plug is inserted into the terminal box, the metal insert is between the upper metal shrapnel and the lower metal shrapnel, and the surface of the insert is in close contact with the upper metal shrapnel and the lower metal shrapnel respectively. . When inserting the meter changing plug into the terminal box, the incoming line of the live wire is short-circuited with the live wire of the room, and at the same time, the incoming line of the neutral line is short-circuited with the neutral line of the room. At this time, no matter what operation is performed on the single-phase electric energy meter, it will not affect it. The electricity consumption of residential users can also solve the problem of interruption of power supply for residential users caused by existing replacement methods.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present application. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is a top view of a terminal box for replacing the connecting terminals of a single-phase electric energy meter without power failure provided by the embodiment of the present application;

Fig. 2 is a front view of a meter replacement plug for replacing the terminals of a single-phase electric energy meter without power failure provided by the embodiment of the present application;

Fig. 3 is a rear view of a meter replacement plug for replacing the terminals of a single-phase electric energy meter without power failure provided by the embodiment of the present application;

Fig. 4 is a perspective view of a communication unit provided by an embodiment of the present application;

Fig. 5 is a perspective view of another communication unit provided by the embodiment of the present application;

Fig. 6 is a perspective view of another communication unit provided by the embodiment of the present application;

Fig. 7 is a top view of an upper cover provided by another embodiment of the present application;

Fig. 8 is a top view of an outer cover provided by another embodiment of the present application.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

Embodiment one

This embodiment provides a connection terminal for replacing a single-phase electric energy meter without power failure. The connection terminal treasure includes a terminal box and a meter replacement plug, as shown in Fig. 1 and Fig. 2 respectively.

Fig. 1 is a top view of a terminal box for replacing a terminal box of a single-phase electric energy meter without power failure provided by an embodiment of the present application.

As shown in Figure 1, the terminal box 100 for replacing the connecting terminals of a single-phase electric energy meter provided by this embodiment includes four communication units 10, which are the first communication unit 11, the second communication unit 12, The third communication unit 13 and the fourth communication unit 14 .

Each communication unit includes an upper clip 111, a lower clip 113, and a socket 112 between the upper clip 111 and the lower clip 113. The socket 112 is provided with an upper metal dome 1121 and a lower metal dome 1122. The upper metal dome 1121 is connected with the upper clip 111 , the lower metal elastic piece 1122 is connected with the lower clip 113 , and the upper metal elastic piece 1121 and the lower metal elastic piece 1122 are in close contact.

The upper clip 111 of the first connecting unit 11 is used to connect the live wire incoming terminal of the single-phase electric energy meter, and the lower clip 113 is used to connect the live wire of the single-phase electric power; the upper clip of the second connecting unit 12 is used to connect the The live wire outgoing terminal and the lower clip of the single-phase electric energy meter are used to connect the indoor live wire of the residential user; the upper clip of the third connection unit 13 is used to connect the zero line incoming terminal of the single-phase electric energy meter, and the lower clip is used It is used to connect the zero line of the single-phase mains; the upper clip of the fourth connection unit 14 is used to connect the zero line outlet terminal of the single-phase electric energy meter, and the lower clip is used to connect the indoor zero line of the resident user.

Fig. 2 is a front view of a meter replacement plug for replacing the terminals of a single-phase electric energy meter without power failure provided by the embodiment of the present application.

As shown in FIG. 2 , the meter replacement plug 200 provided by this embodiment for replacing the terminals of the single-phase watt-hour meter without power failure is kept by the power department at ordinary times, and is carried to the power consumption site by the maintenance personnel when the single-phase watt-hour meter needs to be replaced.

The gauge plug 200 includes four metal inserts 20 , including a first insert 21 , a second insert 22 , a third insert 23 and a fourth insert 24 . The positions of the four metal inserts 20 match the positions of the four insertion holes 112 of the terminal box 100 .

Wherein, the first insertion piece 21 is connected with the second insertion piece 22, and the third insertion piece 23 is connected with the fourth insertion piece 24. In the jack 112 of a communication unit 11, the second inserting piece 22 is inserted in the jack of the second communicating unit 12, the third inserting piece 23 is inserted in the jack of the third communicating unit 13, the fourth inserting piece 24 is inserted into the fourth Connecting unit 14 jack. The insertion piece 20 separates the upper metal dome and the lower metal dome of the socket of the communication unit 10 .

At this time, the lower metal elastic piece 1122 of the first communication unit 11 is in contact with the first insertion piece 21, and the lower metal elastic piece 1122 of the second communication unit 12 is in contact with the second insertion piece 22, because the first insertion piece 21 and the second insertion piece 22 phase connection, at this time the live wire of the mains is connected with the indoor live wire; similarly, the neutral line of the mains is connected with the indoor neutral wire. At this time, no matter what kind of operation is performed on the single-phase electric energy meter, it will not affect the electricity consumption of residential users.

It can be seen from the above technical solutions that the present application provides a terminal for replacing a single-phase electric energy meter without power failure, including a terminal box and a meter replacement plug. The terminal box is provided with four communication units, and each communication unit is provided with an upper clamp, a lower clamp and a socket between the upper clamp and the lower clamp, and an upper clamp connected with the upper clamp is arranged in the socket. The metal shrapnel and the lower metal shrapnel connected with the lower clip, the upper metal shrapnel and the lower metal shrapnel are in contact; the four communication units are respectively the first communication unit, the second communication unit, the third communication unit and the fourth communication unit; The upper clip of the first connection unit is used to connect the live wire input terminal of the single-phase electric energy meter, and the lower clip is used to connect the live wire of the single-phase electric power; the upper clip of the second connection unit is used to connect the single-phase electric energy meter The live wire outlet terminal and the lower clip are used to connect the indoor live wire of the resident user; the upper clip of the third connection unit is used to connect the zero line incoming terminal of the single-phase electric energy meter, and the lower clip is used to connect the zero line of the single-phase utility power. line; the upper clip of the fourth connection unit is used to connect the neutral line outlet terminal of the single-phase electric energy meter, and the lower clip is used to connect the indoor neutral line of the residential user. The meter changing plug is provided with four metal inserts, which are respectively the first insert, the second insert, the third insert and the fourth insert, the first insert is connected with the second insert, the third insert is connected with the The fourth insertion piece is connected; the position of the first insertion piece matches the position of the jack of the first communication unit; the position of the second insertion piece matches the position of the jack of the second communication unit; the position of the third insertion piece The position matches the position of the jack of the third communication unit; the position of the fourth insertion piece matches the position of the jack of the fourth communication unit. The meter changing plug is used to insert into the terminal box. When the meter changing plug is inserted into the terminal box, the metal insert is between the upper metal shrapnel and the lower metal shrapnel, and the surface of the insert is in close contact with the upper metal shrapnel and the lower metal shrapnel respectively. . When inserting the meter changing plug into the terminal box, the incoming line of the live wire is short-circuited with the live wire of the room, and at the same time, the incoming line of the neutral line is short-circuited with the neutral line of the room. At this time, no matter what operation is performed on the single-phase electric energy meter, it will not affect it. The electricity consumption of residential users can also solve the problem of interruption of power supply for residential users caused by existing replacement methods.

The terminal box 100 is also provided with a fixing piece (not shown) for fixing the terminal box 100 on the bottom plate of the junction box, and is used for fixing the terminal box 100 near the single-phase electric energy meter to facilitate wiring.

The meter changing plug 200 includes an upper shell 210 and a lower plate 220 , the lower plate 220 is used to fix the four metal inserts 20 , and the upper cover 210 is used to cover the lower plate 220 . A positioning bolt 221 is provided on the lower plate 220 for matching with a positioning hole (not shown) provided on the terminal box 100 .

In addition, an insulating layer 201 is provided on the part of the metal insert 20 that is in contact with the upper metal elastic piece, as shown in FIG. 3 . In this way, when the meter changing plug is inserted into the terminal box, the upper metal shrapnel and the lower metal shrapnel are completely disconnected electrically, so that the operator will not be charged to operate when replacing the single-phase electric energy meter, which will be safer.

Fig. 4 is a perspective view of a communication unit provided by an embodiment of the present application.

The internal structure of the communication unit in this embodiment is shown in Figure 4. The upper clip 111 of the communication unit 11 includes a wire insertion hole (not shown) and at least one crimping screw 1113, and the lower clip also includes a wire insertion Holes 1131 and at least one crimping screw 1132 .

The upper metal dome 1121 and the lower metal dome 1122 are in close contact with each other.

Fig. 5 is a perspective view of another communication unit provided by the embodiment of the present application.

The current flowing through the single-phase watt-hour meter may sometimes be very large. In order to improve the over-current capability, two sets of metal shrapnel can be installed, as shown in Figure 5.

This communication unit includes a first upper metal dome 1121, a second upper metal dome 1123, a first lower metal dome 1122 and a second lower metal dome 1124, the first upper metal dome 1121 is in contact with the first lower metal dome 1122, the second The second upper metal shrapnel 1123 is in contact with the second lower metal shrapnel 1124, because the increased contact area also increases the flow capacity.

Moreover, a fastening screw 1125 can also be added, as shown in Figure 6, when the fastening bolt 1125 is tightened, its end will press the second lower metal dome 1124 to the second upper metal dome 1123, which can maintain the connection between the two. Contact is more reliable.

Embodiment two

Fig. 7 is a top view of an upper cover provided by another embodiment of the present application.

In this embodiment, an upper cover 300 is added on the basis of the previous embodiment. As shown in FIG. 7 , the upper cover 300 is fixed on the upper surface of the terminal box, and is used to cover the communicating units of the terminal box to increase safety.

The shape of the upper cover 300 matches the shape of the terminal box, and four through holes 30 are arranged on it. The hole 30 is inserted into the socket of the communication unit.

The upper cover is also provided with a number of circular through holes, the positions of which are respectively matched with the compression screws of the upper and lower clamps of the communication unit, so as to facilitate loosening or tightening of the compression screws during wiring.

In order to prevent electricity theft, an outer cover 400 can also be provided. As shown in FIG. The hole 40 can be used to set a lead seal to prevent non-operators from opening the outer cover 400, so as to prevent criminals from stealing electricity.

Each embodiment in this specification is described in a progressive manner, each embodiment focuses on the difference from other embodiments, and the same and similar parts of each embodiment can be referred to each other. The above description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the application. Therefore, the present application will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A connection terminal for replacing a single-phase electric energy meter without power failure, characterized in that it includes a terminal box and a plug for changing meters, wherein: The terminal box is provided with four communication units, and the communication unit is provided with an upper clamp, a lower clamp and a socket between the upper clamp and the lower clamp, and the socket is provided with a The upper metal shrapnel connected to the upper clip and the lower metal shrapnel connected to the lower clip; the upper metal shrapnel is in contact with the lower metal shrapnel; The four connected units are respectively a first connected unit, a second connected unit, a third connected unit and a fourth connected unit; The upper clip of the first communication unit is used to connect the live wire incoming terminal of the single-phase electric energy meter, and the lower clip is used to connect the live wire of the single-phase electric power; The upper clip of the second communication unit is used to connect the outgoing terminal of the live wire of the single-phase electric energy meter, and the lower clip is used to connect the indoor live wire of the resident user; The upper clip of the third connection unit is used to connect the neutral wire incoming terminal of the single-phase electric energy meter, and the lower clip is used to connect the neutral wire of the single-phase mains; The upper clip of the fourth connection unit is used to connect the neutral line outgoing terminal of the single-phase electric energy meter, and the lower clip is used to connect the indoor neutral line of the residential user; The meter changing plug is provided with four metal inserts, which are respectively the first insert, the second insert, the third insert and the fourth insert, the first insert is connected with the second insert, and the The third insert is connected to the fourth insert; The position of the first insert matches the position of the jack of the first communication unit; the position of the second insert matches the position of the jack of the second communication unit; the third The position of the insert matches the position of the jack of the third communication unit; the position of the fourth insert matches the position of the jack of the fourth communication unit; The meter changing plug is used to be inserted into the terminal box. When the meter changing plug is inserted into the terminal box, the metal insert is interposed between the upper metal elastic piece and the lower metal elastic piece, and the The surfaces of the inserts are in close contact with the upper metal shrapnel and the lower metal shrapnel respectively. 2 . The connection terminal according to claim 1 , wherein an insulating layer is provided on the surface of the metal insertion piece in contact with the upper metal elastic piece. 3 . 3. The connection terminal according to claim 1, wherein the upper metal dome comprises a first upper metal dome and a second upper metal dome; The lower metal shrapnel includes a first lower metal shrapnel and a second lower metal shrapnel; The first upper metal dome is in contact with the first lower metal dome; The second upper metal dome is in contact with the second lower metal dome. 4. The connection terminal according to claim 3, wherein the connecting unit is provided with a fastening screw; when the fastening screw is tightened, its top presses the second lower metal shrapnel to the The second metal shrapnel. 5 . The connection terminal according to claim 1 , wherein the upper clip includes a wire insertion hole and at least one crimping screw; the lower clip includes a wire insertion hole and at least one crimping screw. 6. The connection terminal according to any one of claims 1-5, further comprising an upper cover fixed on the top of the terminal box; The shape of the upper cover matches the upper surface of the terminal box; The upper cover is provided with four through holes matching with the jacks for accommodating the insertion of the insertion pieces. 7. The connection terminal according to claim 6, wherein the meter changing plug comprises an upper shell and a lower plate; The plug is arranged on the lower plate, and part of it leaks out of the lower plate downward; The upper shell is connected with the lower plate to cover the upper surface of the lower plate. 8. The connection terminal according to claim 7, characterized in that, the lower plate is provided with a positioning bolt; Positioning holes matching the positioning bolts are arranged on the terminal box. 9. The connection terminal according to claim 8, further comprising an outer cover covering the through hole; The outer cover is provided with a thin hole for locking it on the upper cover for setting a lead seal. 10. The connection terminal according to claim 9, wherein the terminal box is provided with a fixing piece for fixing it on the bottom plate of the connection box.