CN204927559U - Quick connector - Google Patents

Abstract

The utility model provides a quick connector, include the plug A and the plug B that connect through two signal lines of same horizontal plane coparallel, plug A with plug B links to each other with electric energy meter and circuit breaker respectively, plug A includes the rectangular bodily form fixed block of two parallels, and one of them fixed block A is greater than another fixed block B's horizontal direction width at the width of horizontal direction. The utility model provides a quick connector has fully considered current operating personnel's operation custom, efficiency demand, mistake proofing demand, simple easy the realization and factors such as cost requirement, and the intelligent ammeter's of being convenient for on -the -spot installation and maintenance has fine economic benefits and social.

Description

a quick connector

technical field

The utility model relates to a connector, in particular to a connector for quickly and accurately connecting an intelligent electric energy meter and an external circuit breaker.

Background technique

The smart energy meter installed outdoors is embedded in the meter box, and the smart energy meter is connected with an external circuit breaker, and the user load is switched on and off through the external circuit breaker.

After the smart energy meter and the low-voltage meter box are standardized, in order to improve the success rate of the smart energy meter control command execution, it is necessary to retain one of the original two control output signal lines connecting the smart energy meter and the external circuit breaker. , Change another control output signal line to a feedback input signal line, so as to feed back the execution result of the circuit breaker to the smart energy meter.

To this end, new regulations are required for the design of smart energy meters and circuit breakers. It is required that the two control terminals on one side of the signal terminal block of the smart watt-hour meter are used for the output of the control signal and the input of the feedback signal. Connect the black two signal wires.

During the actual wiring process of the field operators, it was found that directly crimping the two ends of the signal line to the electric meter and the circuit breaker, the operation efficiency is low, the two red and black signal lines are easy to be reversed, and the circuit breaker with a general standard appearance does not support It is inconvenient to screw the screw, and the wiring operation is inconvenient; on the other hand, the two control terminals on one side and the two RS485 terminals on the other side of the signal terminal block of the smart energy meter are commonly used in actual operation, but the output of the control terminals It is a 220V voltage signal, and the RS485 terminal output is a communication signal. If the on-site operator connects the control signal line of the two signal lines to the RS485 terminal, it will burn out the RS485 chip inside the smart energy meter, resulting in the failure of the smart energy meter. Table failure.

In order to improve the wiring efficiency between the smart energy meter and the external circuit breaker, and prevent the on-site operators from connecting the wrong wires and connecting the reverse wires, it is necessary to provide a new quick connector to realize the fast and accurate connection between the smart energy meter and the circuit breaker. connect.

Utility model content

In order to solve the above-mentioned deficiencies in the prior art, the utility model provides a quick connector, which is used to realize the fast and accurate connection between the terminal of the smart electric energy meter and the signal interface of the circuit breaker.

The technical solution provided by the utility model is: a quick connector, including a plug A and a plug B connected by two parallel signal lines on the same horizontal plane, the plug A and the plug B are respectively connected to the electric energy meter and the circuit breaker connected, the improvement is that: the plug A includes two parallel cuboid-shaped fixing blocks, wherein the width of one fixing block A in the horizontal direction is larger than the width of the other fixing block B in the horizontal direction.

Preferably, the two cuboid-shaped fixing blocks are connected by an intermediate connecting piece perpendicular to the direction of the signal line, and the two cuboid-shaped fixing blocks are integrally formed with the connecting piece, and the whole is U-shaped;

Two signal lines are respectively fixed on one side of the two cuboid-shaped fixing blocks, and two plug columns extending in the opposite direction to the opening of the U-shaped plug A are respectively fixed on the other side of the two cuboid-shaped fixing blocks. The two signal lines are coaxial and electrically connected.

Further, the plug column is made of beryllium bronze, and the surface is electroplated. The side wall of the plug column is provided with shrapnel, so that the plug column and the socket hole of the electric energy meter are in surface contact.

Further, the elastic piece is arranged symmetrically on both sides of the outer wall of the plug column along the axial direction of the plug column, and the elastic piece is a corrugated curved surface protruding toward the outside of the plug column.

Preferably, the electric energy meter is provided with a signal terminal row, the two ends of the signal terminal row are respectively provided with baffles, and the signal terminal row between the two baffles is sequentially provided with two RS485 connection terminal, four spare terminals and two control terminals; the horizontal width of fixed block A is greater than the distance between the outermost RS485 connection terminal and the baffle plate closest to the RS485 connection terminal.

Further, the top of the connector is vertically provided with a bent part whose bent part is parallel to the plane where the two signal lines are located.

Preferably, the plug B is a standard XK/KF2EDG5.08MM terminal.

Further, a control signal input jack and a feedback signal output jack are reserved on the circuit breaker, the two control terminals are the control signal output terminal and the feedback signal input terminal respectively, and one of the two signal lines is the two ends The control signal line is respectively connected to the control signal output terminal and the control signal input jack, and the other signal line is a feedback signal line whose two ends are respectively connected to the feedback signal output jack and the feedback signal input terminal.

Compared with the closest prior art, the utility model has the following remarkable progress:

1. The quick connector provided by the utility model fully considers the operating habits of existing operators, efficiency requirements, error prevention requirements, simple and easy implementation, and cost requirements. It is convenient for on-site installation and maintenance of smart energy meters, and has a good economic and social benefits;

2. The quick connector is composed of two signal lines with integrated design and plugs at both ends, which makes the wiring operation at both ends simple and reliable;

3. The plug A connected to the smart energy meter includes two parallel cuboid fixed blocks, and the horizontal width of one fixed block A in the direction perpendicular to the signal line is larger than the horizontal width of the other fixed block B in the direction perpendicular to the signal line width. It can remind the operator that the plug-in direction of the control terminal side of the smart energy meter is that the wide side is on the right, and the narrow side is on the left, so as to prevent the connecting wires on the side of the smart energy meter from being reversely connected;

4. The plug B connecting the circuit breaker adopts the standard XK/KF2EDG5.08MM terminal, which can prevent the connecting wires on the circuit breaker side from being reversed;

5. The horizontal width of the fixed block A is greater than the distance between the outermost RS485 terminal on the signal terminal row and the baffle closest to the RS485 terminal, which can prevent the operator from connecting two signal lines to the RS485 terminal. ;

6. There is a curved piece on the top of the plug A connected to the smart energy meter as an operating handle, which is convenient for the operator to insert and pull out the plug column;

7. The shrapnel is set on the side wall of the plug column, which can make the plug column and the socket hole of the electric energy meter realize surface contact, increase the contact area between the plug column and the socket hole of the electric energy meter, and make the plug column easier to plug in and out. The electrical connection reliability between the plug column and the electric energy meter is higher.

8. The shrapnel is symmetrically arranged on both sides of the outer wall of the plug post along the axial direction of the plug post, and the shrapnel is a corrugated curved surface protruding to the outside of the plug post, which further increases the contact area between the plug post and the socket hole of the electric energy meter, and improves This ensures the reliability of the electrical connection between the plug post and the energy meter.

Description of drawings

Fig. 1 is the structural representation of the fast connector that the utility model provides;

Fig. 2 is a schematic diagram of the longitudinal section structure of the plug column provided by the utility model;

Among them, 1-bending piece; 2-fixing block A; 3-fixing block B; 4-signal line; 5-plug column; 6-XK/KF2EDG5.08MM terminal; 7-shrapnel.

Detailed ways

In order to better understand the utility model, the content of the utility model will be further described below in conjunction with the accompanying drawings and examples of the description.

The output of control commands and the input of control results are realized through two signal lines 4 between the smart electric energy meter and the external circuit breaker. In order to realize the fast and accurate connection between the two ends of the signal line 4 and the control terminal of the smart energy meter and the signal interface of the circuit breaker respectively, it is necessary to design connectors at both ends of the signal line 4 for easy connection. The two signal lines 4 are integrated with the connector fittings at both ends, so that the wiring operation at both ends is simple and the contact is reliable.

The utility model provides a quick connector, the structure of which is shown in Figure 1: it includes a plug A and a plug B connected by two signal lines 4 parallel to each other on the same horizontal plane, and the plug A and the plug B are respectively connected to The watt-hour meter is connected to the circuit breaker, and the plug A includes two parallelepiped fixed blocks, one of which has a larger horizontal width in the direction perpendicular to the signal line 4 than the horizontal width of the other fixed block B3 in the direction perpendicular to the signal line 4 The horizontal width in the direction; it can remind the operator that the insertion direction of the connector on the control terminal side of the smart energy meter is that the wide side is on the right and the narrow side is on the left, so as to prevent the connecting wires on the side of the smart energy meter from being reversed.

The two cuboid-shaped fixing blocks are connected by an intermediate connecting piece perpendicular to the direction of the signal line 4, and the two cuboid-shaped fixing blocks are integrally formed with the connecting piece, forming a U-shape as a whole.

One side of the two cuboid-shaped fixing blocks fixes two red and black signal wires 4 respectively, and the other side of the two cuboid-shaped fixing blocks respectively fixes two plug columns 5 extending in the opposite direction to the opening of the U-shaped plug A. The plug columns 5 are respectively coaxial and electrically connected to the red and black signal lines 4 .

The schematic diagram of the longitudinal section of the plug column 5 is shown in Figure 2: the plug column is a columnar structure made of beryllium bronze, and the surface is electroplated, easy to process, and excellent in temperature rise control. A shrapnel 7 is provided on the side wall of the plug column, so that the plug column 5 and the socket hole of the electric energy meter are in surface contact. The shrapnel is symmetrically arranged on both sides of the outer wall of the plug post along the axial direction of the plug post. After the shrapnel 7 is processed, both ends are pressed in the plug post 5, in order to increase the distance between the shrapnel 7 and the plug post. As for the electrical connection area, the shrapnel 7 is a corrugated curved surface protruding to the outside of the plug post, and the arc height of the curved surface is made according to the hole distance of the electric energy meter socket.

The smart electric energy meter is provided with a signal terminal row, and the two ends of the signal terminal row are respectively provided with baffles, and the signal terminal row between the two baffles is sequentially provided with two RS485 wires from one side to the other. terminal, four spare terminals and two control terminals; the two control terminals are control signal output terminals and feedback signal input terminals respectively, and the horizontal width of the fixed block A is larger than the outermost RS485 connection terminal on the signal terminal row and connected to the The distance between the RS485 terminals and the nearest baffle can prevent operators from connecting two signal lines to the RS485 terminals.

A control signal input jack and a feedback signal output jack are reserved on the circuit breaker, one of the two signal lines 4 is connected to the control signal output terminal on the smart energy meter and the control signal input on the circuit breaker respectively. jack, and the other signal line is the feedback signal line whose two ends are respectively connected to the feedback signal output jack on the circuit breaker and the feedback signal input terminal on the smart energy meter.

In addition, on the top of the connecting piece of the plug A, a curved piece 1 with a bent portion parallel to the plane where the two signal lines 4 are located is vertically provided as an operating handle, which is convenient for the operator to insert and pull out the plug post 5 .

The plug B adopts the standard XK/KF2EDG5.08MM terminal 6, which can prevent the connecting wires on the circuit breaker side from being reversely connected.

Both the plug A and the plug B are made of high-quality plastic materials, which are reliable in quality and not easily deformed, suitable for multiple insertions and extractions, and have a long service life.

The above are only the embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements or improvements made within the spirit and principles of the present utility model are included in the claims of the utility model to be examined and approved. within range.

Claims (8)

1. A quick connector, comprising a plug A and a plug B connected by two parallel signal wires on the same horizontal plane, the plug A and the plug B are respectively connected to an electric energy meter and a circuit breaker, and it is characterized in that: The plug A includes two parallel cuboid-shaped fixing blocks, wherein the width of one fixing block A in the horizontal direction is larger than that of the other fixing block B in the horizontal direction. 2. A quick connector according to claim 1, characterized in that: The two cuboid-shaped fixing blocks are connected by an intermediate connector perpendicular to the direction of the signal line, and the two cuboid-shaped fixing blocks are integrally formed with the connector, and the overall shape is U-shaped; Two signal lines are respectively fixed on one side of the two cuboid-shaped fixing blocks, and two plug columns extending in the opposite direction to the opening of the U-shaped plug A are respectively fixed on the other side of the two cuboid-shaped fixing blocks. The two signal lines are coaxial and electrically connected. 3. A quick connector according to claim 2, characterized in that: The plug column is made of beryllium bronze, and the surface is electroplated. The side wall of the plug column is provided with shrapnel, so that the plug column and the socket hole of the electric energy meter are in surface contact. 4. A quick connector according to claim 3, characterized in that: The elastic pieces are arranged symmetrically on both sides of the outer wall of the plug column along the axial direction of the plug column, and the elastic pieces are corrugated curved surfaces protruding toward the outside of the plug column. 5. A quick connector according to claim 1, characterized in that: The electric energy meter is provided with a signal terminal row, the two ends of the signal terminal row are respectively provided with baffles, and the signal terminal row between the two baffles is sequentially provided with two RS485 terminals , four spare terminals and two control terminals; the horizontal width of the fixed block A is greater than the distance between the outermost RS485 terminal and the baffle closest to the RS485 terminal. 6. A quick connector according to claim 2, characterized in that: The top of the connector is vertically provided with a bent part whose bent part is parallel to the plane where the two signal lines are located. 7. A quick connector according to claim 1, characterized in that: said plug B is a standard XK/KF2EDG5.08MM terminal. 8. A quick connector according to claim 5, characterized in that: A control signal input jack and a feedback signal output jack are reserved on the circuit breaker. The two control terminals are the control signal output terminal and the feedback signal input terminal respectively. One of the two signal lines is connected to the two ends respectively. The control signal line is a control signal line between the control signal output terminal and the control signal input jack, and the other signal line is a feedback signal line whose two ends are respectively connected to the feedback signal output jack and the feedback signal input terminal.