Electric energy meter connector

Abstract

The utility model relates to an electric energy meter connector, which comprises a base, a plurality of wiring terminals and a short-circuit pin assembly, the short-circuit pin assembly comprises a pin seat, a plurality of pins and a short-circuit conductive plate, one end of each wiring terminal is provided with a short-circuit contact part, and the other end of each pin is provided with a clamping groove matched with the short-circuit contact part. The clamping grooves of the plurality of contact pins act along with the contact pin seat and are clamped on the short-circuit contact part, and connection or disconnection between the plurality of contact pins and the plurality of wiring terminals is realized; the short-circuit conductive plate acts along with the pin seat and abuts against the short-circuit contact portions of the two adjacent wiring terminals, connection or disconnection between the short-circuit conductive plate and the two adjacent wiring terminals is achieved, one end of the pin seat is provided with a locking fastener matched with the base, the base is provided with a lock hole matched with the locking fastener, the locking fastener is clamped in the lock hole, and the pin seat is connected with the pin seat. And the locking fastener is matched with the base in a clamping manner. The device has the advantages of simple structure, stable and reliable performance, convenient wiring, high safety and high meter changing efficiency.

Description

Technical Field

[0001] The utility model relates to a connector, in particular to an electric energy meter connector. Background Art

[0002] With the transformation of the State Grid, power grid companies have begun to vigorously promote smart grids, which has led to a significant increase in the use of electricity meters and meter boxes. An electricity meter is an instrument used to measure electrical energy, also known as a watt-hour meter. With the transformation and upgrade of the power grid, single-phase electricity meters are widely used in the power and electrical fields. The State Grid stipulates that electricity meters should be installed using dedicated connectors. Wires must not be directly connected to the meter. The meter connector plug should use an interference fit to ensure fast, convenient, safe, and secure installation. To ensure the operation of hot-swap meter replacement, existing meter connectors require temporary short-circuiting of the wires to achieve temporary power supply. This short-circuiting method is cumbersome and unsafe to operate. As a result, a connector with an automatic short-circuiting structure has appeared on the market. This automatic short-circuiting structure drives the short-circuiting conductive plate to contact two adjacent pins through a reset spring to achieve automatic short-circuiting of the connector (such as patent number CN 201610074748.5). Although this connector solves the defects in the temporary short-circuiting wire method, when short-circuiting, the power supply of the two adjacent pins of the connector is not cut off, and the pins are in a live state. When changing the meter, the operator is likely to touch the pins, which may easily cause a safety accident. The safety is not high, and the pin holder of the existing electricity meter connector cannot be locked when it is in the closed position, and the connection reliability of the electricity meter connector and the electricity meter cannot be guaranteed. Summary of the Invention

[0003] The purpose of the utility model is to overcome the defects of the prior art and provide an electric energy meter connector with simple structure, stable and reliable performance, high safety and high meter replacement efficiency.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts an electric energy meter connector, including a base, a plurality of wiring terminals respectively arranged in the base, and a short-circuit pin assembly rotatably arranged on the base. The short-circuit pin assembly includes a pin seat rotatably arranged on the base, a plurality of pins respectively arranged on the pin seat, and a short-circuit conductive plate linked to the pin seat between two adjacent wiring terminals. One end of the plurality of wiring terminals has a short-circuit contact portion, and the other end of the plurality of pins has a clamping groove matched with the short-circuit contact portion. The snap-in grooves of the multiple pins move with the pin holder and are snapped onto the short-circuit contact portion, thereby realizing the connection or disconnection of the multiple pins with the multiple wiring terminals; the short-circuit conductive plate moves with the pin holder and abuts against the short-circuit contact portions of two adjacent wiring terminals, thereby realizing the connection or disconnection of the short-circuit conductive plate with the two adjacent wiring terminals, a locking piece that cooperates with the base is provided on one end of the pin holder, a locking hole that cooperates with the locking piece is provided on the base, the locking piece is snapped into the locking hole, and a snap-in fit between the locking piece and the base is formed.

[0005] The beneficial effects of the above structure are as follows: a shorting conductive plate is provided on the pin holder. When the pin holder is pulled up, the shorting conductive plate contacts two adjacent terminals, thereby achieving the shorting function of the connector. The pins move with the pin holder, separating the shorting contact portions of the pins from the terminals, disconnecting the pins from the terminals. This allows the connector to simultaneously short-circuit and disconnect the power supply to the pins. During installation, operators will not experience electric shock if they touch the pins, providing increased safety. When the pin holder is closed, the break piece snaps into the lock hole, locking the pin holder and the base, thereby improving the reliability of the connection between the electric energy meter connector and the electric energy meter and providing increased safety. Consequently, the connector has the advantages of a simple structure, stable and reliable performance, high safety, and efficient meter replacement.

[0006] Specifically, the base is provided with a rotating shaft on each side, and the pin holder is provided with a positioning hole that cooperates with the rotating shaft. The rotating shaft is inserted into the positioning hole, forming a rotational connection between the pin holder and the rotating shaft. The base is connected to the pin holder via the rotating shaft, which facilitates assembly of the pin holder and the base and ensures that the pin holder rotates reliably on the base.

[0007] Specifically, the base is provided with a positioning post on each side, and the pin holder is provided with two locking holes at each end that cooperate with the positioning post. The locking holes move with the pin holder and engage with the positioning post, respectively, forming a position-limiting fit between the pin holder and the positioning post. The base is provided with a positioning post that cooperates with the pin holder. The positioning post cooperates with the two locking holes and can keep the pin holder open or closed, thus facilitating operation by the operator.

[0008] In particular, the locking member has an elastic hook that passes through the lock hole and snaps onto the base, forming a snap fit between the elastic hook and the base. The locking member engages with the base via the elastic hook, thereby facilitating locking of the pin holder and the base, making operation more convenient.

[0009] Specifically, the shorting plate has contact arms at both ends that mate with the shorting contacts of the terminal blocks. A screw is located in the middle of the shorting plate, passing through the plate and connecting to the pin holder. The shorting plate contacts the shorting contacts of the terminal blocks via the contact arms, thereby improving the shorting reliability of the energy meter connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a three-dimensional diagram of an embodiment of the present utility model.

[0011] Figure 2 This is a cross-sectional view of an embodiment of the present invention.

[0012] Figure 3 This is an exploded view of an embodiment of the present utility model.

[0013] Figure 4 This is an internal structure diagram of an embodiment of the present utility model. DETAILED DESCRIPTION

[0014] like Figures 1 to 4 As shown, the embodiment of the present invention is an electric energy meter connector, including a base 10, a plurality of wiring terminals 11 respectively arranged in the base 10, and a short-circuit pin assembly 20 rotatably arranged on the base 10, wherein the short-circuit pin assembly 20 includes a pin seat 21 rotatably arranged on the base 10, a plurality of pins 22 respectively arranged on the pin seat 21, and a short-circuit conductive plate 23 linked to the pin seat 21 between two adjacent wiring terminals 11, wherein one end of the plurality of wiring terminals 11 has a short-circuit contact portion 111, and the other end of the plurality of pins 22 has a snap-in groove 221 that matches the short-circuit contact portion 111, and the plurality of pins 22 have a snap-in groove 221 that matches the short-circuit contact portion 111. 2, the snap-in slot 221 moves with the pin holder 21 and is engaged with the short-circuit contact portion 111, thereby realizing the connection or disconnection of multiple pins 22 with multiple wiring terminals 11; the short-circuit conductive plate 23 moves with the pin holder 21 and abuts against the short-circuit contact portions 111 of two adjacent wiring terminals 11, thereby realizing the connection or disconnection of the short-circuit conductive plate 23 with the two adjacent wiring terminals 11, and the pin holder 21 is provided with a locking member 24 that cooperates with the base 10 at one end, and the base 10 is provided with a locking hole 101 that cooperates with the locking member 24, and the locking member 24 is engaged in the locking hole 101, thereby forming a snap-in fit between the locking member 24 and the base 10.

[0015] like Figure 2 、3 As shown in Figures 4 and 5, the base 10 is provided with a rotating shaft 102 on each side, and the pin socket 21 is provided with a positioning hole 211 that cooperates with the rotating shaft 102. The rotating shaft 102 is inserted into the positioning hole 211, forming a rotational connection between the pin socket 21 and the rotating shaft 102. The base is connected to the pin socket via the rotating shaft, which facilitates assembly of the pin socket and the base and ensures that the pin socket rotates reliably on the base. The base 10 is provided with a positioning post 103 on each side, and the pin socket 21 is provided with two locking holes 212 at both ends that cooperate with the positioning post 103. The locking holes 212 move with the pin socket 21 and respectively engage with the positioning post 103, forming a position-limiting cooperation between the pin socket 21 and the positioning post 103. The base is provided with a positioning post that cooperates with the pin socket. The positioning post cooperates with the two locking holes and can keep the pin socket open or closed, thereby facilitating operation by the operator. The locking member 24 has an elastic hook 241, which passes through the lock hole 101 and is snapped onto the base 10, forming a snap-fitting fit between the elastic hook 241 and the base 10. The locking member is snapped onto the base through the elastic hook, thereby facilitating the locking of the pin holder and the base, and making the operation more convenient. Both ends of the short-circuit conductive plate 23 have contact arms 231 that cooperate with the short-circuit contact portion 111 of the terminal 11. A screw is provided on the middle of the short-circuit conductive plate 23, and the screw passes through the short-circuit conductive plate 23 and is connected to the pin holder 21. The short-circuit conductive plate contacts the short-circuit contact portion of the terminal through the contact arm, which is beneficial to improving the short-circuit reliability of the electric energy meter connector.

[0016] A shorting conductive plate is provided on the pin socket. When the pin socket is pulled up, the shorting conductive plate contacts two adjacent terminals, thereby achieving the connector's shorting function. The pins follow the pin socket's movement, separating the shorting contact portions between the pins and the terminals, disconnecting the pins from the terminals. This allows the connector to simultaneously short-circuit and disconnect the power supply to the pins. During installation, operators will not experience electric shock if they touch the pins, providing increased safety. When the pin socket is closed, the break piece snaps into the keyhole, locking the pin socket and base. This improves the reliability of the connection between the energy meter connector and the meter, providing increased safety. Consequently, the connector boasts a simple structure, stable and reliable performance, high safety, and efficient meter replacement.

Claims

1. An electric energy meter connector, characterized in that: The short-circuit pin assembly is rotatably mounted on the base, wherein the short-circuit pin assembly comprises a pin holder rotatably mounted on the base, a plurality of pins respectively mounted on the pin holder, and a short-circuit conductive plate linked to the pin holder and arranged between two adjacent terminals. The plurality of terminals have short-circuit contact portions at one end, and the plurality of pins have engaging grooves that cooperate with the short-circuit contact portions at the other end. The engaging grooves of the plurality of pins move with the pin holder and engage with the short-circuit contact portions, thereby realizing connection or disconnection between the plurality of pins and the plurality of terminals; the short-circuit conductive plate moves with the pin holder and contacts the short-circuit contact portions of two adjacent terminals, thereby realizing connection or disconnection between the short-circuit conductive plate and the two adjacent terminals. A locking piece that cooperates with the base is provided on one end of the pin holder, and a locking hole that cooperates with the locking piece is provided on the base. The locking piece is engaged in the locking hole, thereby forming a locking fit between the locking piece and the base.

2. The electric energy meter connector according to claim 1, characterized in that: A rotating shaft is respectively provided on both sides of the base, and a positioning hole matched with the rotating shaft is provided on the pin seat. The rotating shaft is inserted into the positioning hole and constitutes a rotating connection between the pin seat and the rotating shaft.

3. The electric energy meter connector according to claim 2, characterized in that: A positioning column is provided on both sides of the base, and two locking holes that cooperate with the positioning column are provided on both ends of the pin seat. The locking holes move with the pin seat and are respectively engaged with the positioning column, and constitute a limiting cooperation between the pin seat and the positioning column.

4. The electric energy meter connector according to claim 1 or 2, characterized in that: The locking piece is provided with an elastic hook, which passes through the lock hole and is buckled on the base, thereby forming a snap-fitting connection between the elastic hook and the base.

5. The electric energy meter connector according to claim 1 or 2, characterized in that: Both ends of the short-circuit conductive plate have contact arms that match the short-circuit contact parts of the terminal blocks. A screw is provided on the middle of the short-circuit conductive plate. The screw passes through the short-circuit conductive plate and is connected to the pin seat.

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