WO2012116547A1

WO2012116547A1 - Hot-plugging connection terminal for electrical energy meter

Info

Publication number: WO2012116547A1
Application number: PCT/CN2011/080224
Authority: WO
Inventors: 魏梦柏
Original assignee: 安徽省电力公司铜陵供电公司; 安徽省电力公司
Priority date: 2011-02-28
Filing date: 2011-09-27
Publication date: 2012-09-07
Also published as: CA2828327C; CA2828327A1; CN102169131A

Abstract

A hot-plugging connection terminal for an electrical energy meter comprises an electrical energy meter terminal and a base terminal, wherein the electrical energy meter terminal comprises a metal conductor (1) and an insulator (2), the metal conductor (1) being longer than the insulator (2); and the base terminal comprises a terminal connection portion and a housing portion, the terminal connection portion comprising two elastic metal conductors symmetrically disposed and in contact with each other. The hot-plugging connection terminal for an electrical energy meter has a simple structure without changing the internal construction of the main body of any existing electrical energy meter, and is cheap to produce. The beneficial effects thereof are that the power supply is not disrupted when replacing an electrical energy meter, it is more difficult to steal electricity, and electrical energy meter replacement is more efficient.

Description

Electric energy meter hot plug terminal block

The present application claims priority to Chinese Patent Application No. 201110046950.4, entitled "Electric Energy Meter Hot Plug Terminal" on February 28, 2011, the entire contents of which are incorporated herein by reference. .

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for hot plugging and wiring of an electric energy meter, and more particularly to an electric plug hot plug terminal.

BACKGROUND OF THE INVENTION At present, the known electric energy meter terminal is located at the bottom of the electric energy meter and is exposed, and is a wire that is connected to the electric meter by screwing. However, this connection method has the following problems and shortcomings: 1. In the process of replacing the electric energy meter, it is necessary to interrupt the user's power supply, causing inconvenience and certain loss to the user. 2. Exposed terminals provide an opportunity for illegal elements to steal electricity, which may cause economic losses to power supply companies or other users. 3. The electric energy meter and the wires of the power meter and the power meter are manually screwed one by one, which is not only slow and inefficient, but also may cause the line to be misconnected.

Summary of the invention

The invention provides a hot-swappable terminal for electric energy meter, which is used for solving the problem that the existing electric energy meter needs to interrupt the power supply in the replacement work, and the electric energy meter terminal exposure and the electric energy meter replacement operation are inefficient and inefficient.

The technical solution adopted by the present invention to solve the technical problem thereof is: an electric energy meter hot plug terminal, comprising an electric energy meter terminal and a base terminal, wherein the electric energy meter terminal comprises a metal conductor and an insulator, wherein the metal conductor is longer than the insulator; The terminal includes a terminal connection portion and a housing portion, and the terminal connection portion includes two elastic metal conductors that are symmetrically disposed and in contact with each other.

Preferably, the metal conductor comprises a straight portion and a bent portion, and the straight portion and the bent portion are divided into an integral structure; the insulator is a linear structure;

A straight portion of the metal conductor and the insulator are bonded to each other; a bent portion of the metal conductor covers a front end portion of the insulator. Preferably, the two elastic metal conductors are in particular two J-shaped elastic metal conductors arranged opposite each other. Preferably, the thickness of the power meter terminal is greater than the thickness of the base terminal.

Preferably, the outer casing portion includes four outer casing side walls and an outer casing upper wall adjacent to the four outer casing side walls, and a lower casing wall; the terminal connecting portions abut against the four outer casing side walls.

Preferably, the upper casing wall and/or the lower casing wall are provided with groove guide rails for restricting the direction of entry and exit of the electric energy meter terminal.

Preferably, the outer casing is made of an insulating material.

Preferably, the electric energy meter terminal is disposed in a recess in a lower portion of the electric energy meter.

Preferably, the base terminal is provided with a protrusion, and the protrusion is assembled with a groove at a lower portion of the electric energy meter.

Thanks to the modular hot-swap terminal design, different wiring modes such as single-phase and three-phase can be realized by increasing or decreasing the power meter terminal and the base terminal, and reducing the production cost. At the same time, since the terminal is inserted and removed without using any tools, the worker does not directly contact the conductive part, so the speed of replacing the electric energy meter is improved, the technical requirements are lowered, and the safety of the worker is ensured. Moreover, since the steps of manually selecting the line and tightening the screw are no longer required, the electric energy meter terminal can be arranged on the back of the electric energy meter, and the line to which the base terminal is connected can also be arranged on the back side of the base, while passing through the electric meter outer casing and the base. The raised edge completely encloses the entire terminal and wiring, increasing the difficulty of stealing electricity.

The invention has the beneficial effects that the power supply is not interrupted when the electric energy meter is replaced, and the difficulty of stealing electricity is increased, and the efficiency of the electric energy meter replacement is also improved. The hot-swappable terminal block structure is simple, and the internal structure of the main body of the electric energy meter is not changed, and the production cost is low. BRIEF DESCRIPTION OF THE DRAWINGS The invention will now be further described with reference to the drawings and embodiments.

Figure 1 is a diagram showing the construction of an electric energy meter terminal.

Figure 2 is a structural view of the base terminal.

Fig. 3 is a bottom view showing the first step state of the process of connecting the electric energy meter terminal to the base terminal.

Fig. 4 is a bottom plan view showing the second step state of the process of connecting the electric energy meter terminal to the base terminal. Fig. 5 is a front view of Fig. 3.

Figure 6 is a structural view of the base terminal and the outer casing.

Figure 7 is a layout diagram of the electric energy meter terminal.

Figure 8 is a layout view of the base terminal.

Figure 9 is a side view of the shaft shown in Figure 7.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Description: The front and rear portions described herein are specifically in the process of inserting the terminal of the electric energy meter with the base terminal, the first contact portion is the front end, and the last contact portion is the rear end.

Referring to Fig. 1, Fig. 2 and Fig. 6, Fig. 1 is a structural view of the terminal of the electric energy meter; Fig. 2 is a structural view of the base terminal; Fig. 6 is a structural view of the base terminal and the outer casing.

The hot-swappable terminal of the electric energy meter of the invention comprises an electric energy meter terminal and a base terminal. The electric energy meter terminal includes a metal conductor 1 and an insulator 2. The power meter terminal is the hot plug terminal plug, and the base terminal is the hot plug terminal socket.

The metal conductor 1 includes a straight portion and a bent portion, the straight portion and the bent portion being a unitary structure; and the insulator 2 is a linear structure.

The straight portion of the metal conductor 1 and the insulator 2 can be specifically fixed by bonding. The bent portion of the metal conductor 1 covers the front end portion of the insulator 2.

Due to the presence of the bent portion of the metal conductor 1, the metal conductor 1 shown in Fig. 1 is longer than the insulator 2. A bent portion of the front end portion of the metal conductor 1 covers the front end portion of the insulator 2. Specifically, the bent portion of the front end portion of the metal conductor 1 may be in a column shape inlaid with the front end portion of the insulator 2. The metal conductor 1 is slightly longer than the insulator 2 to ensure that the head of the electric energy meter terminal, that is, the plug of the hot plug terminal, is made of metal, and the metal surface of the electric energy meter terminal and the insulator correspond to the two elastic metal conductors 3 of the base terminal, respectively. The rear end portion (i.e., the straight portion) of the metal conductor 1 of the electric energy meter terminal is connected to the electronic component current line 圏.

The base terminal includes a terminal connection portion and a housing portion 5. Referring to Figure 2, the terminal connection portion includes two resilient metal conductors 3 that are symmetrically disposed and in contact. In the embodiment shown in FIG. 2, the elastic metal conductor 3 may specifically be two J-shaped elastic metal conductors disposed opposite to each other, and the hook-end sides of the two J-shaped elastic metal conductors are in contact with each other and depend on each other, and have a certain pressure on each other. Keep in close contact. The non-contact end of the two J-shaped resilient metal conductors connects the load current of the line.

In order to clearly describe the plug-in relationship between the power meter terminal and the base terminal, referring to FIG. 3 and FIG. 4, FIG. 3 is a bottom view of the first step state of the connection process between the power meter terminal and the base terminal; FIG. 4 is the electric energy meter terminal and the base terminal. The second step state of the connection process is a bottom view.

Since the same current passes through all connected devices in the series circuit, as long as there is a disconnection, the entire circuit current is interrupted, that is, the electronic components connected in series cannot work normally. The hot-swappable terminal of the electric energy meter of the present invention is a connecting device capable of electrically connecting or withdrawing electronic components from the series circuit without interrupting the current.

When the base terminal of the present invention, i.e., the hot-swappable terminal socket, is not inserted, the current in the circuit passes through the symmetrical arrangement of the base terminals and the two resilient metal conductors 3 that are in contact with each other.

In the embodiment shown in Fig. 3, specifically, the front end of the electric energy meter terminal just contacts the connection terminal of the base terminal, and the original line current is shunted by a part of the electric energy meter, but the original line is still connected.

When the power meter terminal, that is, the hot plug terminal plug, is inserted into the base terminal, that is, the hot plug terminal socket, the electronic components connected between the two elastic metal conductors 3 and the power meter terminal, that is, the hot plug terminal plug are in parallel relationship, two The sum of the current between the elastic metal conductor 3 (the tongue) and the current of the electronic component is the circuit current.

Continue to insert the power meter terminal, that is, the hot plug terminal plug, and the two elastic metal conductors 3 (the tongues) are separated, but since the head of the electric energy meter terminal, that is, the head (front end portion) of the hot plug terminal plug is a metal body, two elastic metals Current can be maintained between conductors 3 (tabs) and electronic components.

After the electric energy meter terminal, that is, the hot plug terminal plug, is inserted into the base terminal, that is, the hot plug terminal socket, the electric energy meter terminal, that is, the insulating portion of the hot plug terminal plug, is closely attached to the base terminal, that is, an elastic metal conductor 3 of the hot plug terminal socket. a (tab) surface, and the metal portion of the power meter terminal, that is, the front end portion of the hot plug terminal plug, leaves the elastic metal conductor 3 (the tongue), thereby interrupting the passage of current between the two elastic metal conductors 3 (the tongue). The circuit current flows into the connected electronic components completely through the terminal of the electric energy meter, so that the electronic components are electrically connected to the series circuit, and the current of the circuit is not interrupted. As shown in Figure 4, The connection between the energy meter terminal and the base terminal is completed.

At this time, the metal conductor 1 whose line is changed to the terminal of the electric energy meter is in communication with the elastic metal conductor 3 which is in close contact with the side of the metal conductor 1, and the original line is disconnected.

The process of the electronic component dialing circuit is opposite to the above insertion process, and will not be described in detail.

In the embodiment of the present invention, the hot-swappable terminal block of the electric energy meter realizes that when the electronic component is inserted into and out of the series circuit, the loop current is not interrupted.

Referring to Fig. 6, the outer casing portion 5 may specifically include four outer casing side walls and an outer casing upper wall 4 and a lower casing lower wall 5 adjacent to the four outer casing side walls; the terminal connecting portion abuts the four outer casings Side wall. The outer casing portion 5 may specifically be made of an insulating material.

The outer casing upper wall 4 may be provided with a groove guide rail, specifically may be arranged on the center line of the upper casing upper wall 4. The groove guide rail is used to limit the direction of entry and exit of the electric energy meter terminal.

The lower casing wall 5 may also be provided with a groove guide, in particular on the center line of the lower wall 5 of the casing. The groove guide rail is used to limit the direction of entry and exit of the electric energy meter terminal.

Of course, in order to ensure accurate guidance, the upper casing wall 4 and the lower casing wall 5 may be provided with corresponding groove guides by a colleague, and may be specifically disposed on the center line of the upper casing wall 4 and the lower casing wall 5 of the casing. The groove guide rail is used to limit the direction in and out of the electric energy meter terminal.

An opening for providing entry of the electric energy meter terminal may be disposed at the center of the front wall of the outer casing, and openings for extracting the lines may be respectively disposed at both ends of the rear wall of the outer casing.

See Figure 5, which is a front view of Figure 3. The thickness of the power meter terminal is greater than the thickness of the base terminal, that is, the height of the power meter terminal is slightly higher than the base terminal. The purpose of this design is to prevent possible contact failure between the terminal of the electric energy meter and the terminal of the base. The second is to match the groove guide of the base terminal housing to force the correct connection of the energy meter terminals.

Referring to Figures 7 and 9, Figure 7 is a diagram of the arrangement of the terminals of the electric energy meter; Figure 9 is a side view of the shaft shown in Figure 7. The electric energy meter terminal can be specifically arranged in the lower groove of the electric energy meter.

Referring to Figure 8, this figure is a layout diagram of the base terminal. The base terminal is disposed at a position corresponding to the electric energy meter terminal at a lower portion of the base. The base terminal is provided with a protrusion, and the protrusion is assembled with a groove of a lower portion of the electric energy meter. Through the embedding of the recess corresponding to the lower part of the electric energy meter and the base, the two parts of the terminal are correctly connected and the terminal block is hidden, and at the same time, the protrusion of the base is used to strengthen the fixed and concealed wiring. The hot-swappable terminal block of the electric energy meter in the embodiment of the invention may further have a locking and decoupling mechanism after the plug is completely inserted into the base.

The hot-swappable terminal of the electric energy meter according to the embodiment of the invention can be applied to an electronic component such as an electric energy meter, an ammeter, or the like that needs to be serially connected to the circuit. By integrally designing the hot-swap terminal of the electric energy meter according to the embodiment of the present invention in the electronic component, the electronic component can be electrically inserted or dialed into the series circuit without affecting the application of other electronic components in the loop.

The hot-swappable terminal block of the electric energy meter is applied to the electric energy meter structure in the embodiment of the invention, and the continuous power supply to the user is not interrupted when the electric energy meter is replaced. And in the hot plug operation, there is no need to use special tools, and the replacement work efficiency and safety are greatly improved.

According to the modular design of the hot-swap terminal of the electric energy meter, the single-phase, three-phase and the like can be realized by the increase and decrease of the meter terminal and the base terminal and the position movement. Production costs. At the same time, since the power meter terminal is inserted and removed without using any tools, the staff does not directly contact the conductive part, so the speed of replacing the electric energy meter is improved, the technical requirements are lowered, and the safety of the worker is ensured. Moreover, since the steps of manually selecting the line and tightening the screw are no longer required, the electric energy meter terminal can be arranged on the back of the electric energy meter, and the line to which the base terminal is connected can also be arranged on the back side of the base, while passing through the electric meter outer casing and the base. The raised edge completely encloses the entire terminal and wiring, increasing the difficulty of stealing electricity.

The hot-swappable terminal block of the electric energy meter of the invention makes the power supply uninterrupted when the electric energy meter is replaced, increases the difficulty of stealing electricity, and improves the efficiency of electric energy meter replacement. The hot-swappable terminal block structure is simple, and the internal structure of the main body of the original electric energy meter is not changed, and the production cost is low.

Claims

Rights request

1. The hot-swappable terminal of the electric energy meter, wherein the hot-swappable terminal of the electric energy meter comprises an electric energy meter terminal and a base terminal, wherein the electric energy meter terminal comprises a metal conductor (1) and an insulator (2), the metal conductor (1) Longer than the insulator (2); the base terminal includes a terminal connecting portion and a housing portion (5), the terminal connecting portion including two elastic metal conductors (3) symmetrically disposed and in contact with each other.

2. The electric energy meter hot plug terminal according to claim 1, wherein the metal conductor (1) comprises a straight portion and a bent portion, and the straight portion and the bent portion are an integral structure; The insulator (2) is a linear structure;

A straight portion of the metal conductor (1) and the insulator (2) are bonded to each other; and a bent portion of the metal conductor (1) covers a front end portion of the insulator.

The electric energy meter hot swap terminal according to claim 1 or 2, characterized in that the two elastic metal conductors (3) are specifically two J-shaped elastic metal conductors arranged opposite each other.

4. The power meter hot swap terminal of claim 3, wherein the thickness of the power meter terminal is greater than the thickness of the base terminal.

The hot-swappable terminal of the electric energy meter according to claim 1 or 2, wherein the thickness of the electric meter terminal is greater than the thickness of the base terminal.

The electric energy meter hot plug terminal according to claim 1 or 2, wherein the outer casing portion (5) comprises four outer casing side walls and an outer casing upper wall adjacent to the four outer casing side walls. a lower wall of the outer casing; the terminal connecting portion abuts against the four side walls of the outer casing.

7. The electric energy meter hot plug terminal according to claim 6, wherein the upper casing wall and/or the lower casing wall are provided with groove guide rails for limiting the electric energy meter Terminal access direction.

The electric energy meter hot plug terminal according to claim 6, wherein the outer casing portion (5) is made of an insulating material.

9. The power meter hot swap terminal of claim 1, wherein the power meter terminal is disposed in a slot in a lower portion of the power meter.

The electric energy meter hot plug terminal according to claim 9, wherein the base terminal is provided with a protrusion, and the protrusion is assembled with a groove of a lower portion of the electric energy meter.