An error-proof electric energy meter

Abstract

The utility model relates to the field of electric energy meter, and disclose a kind of mistake-proof electric energy meter, including electric energy meter main body, electric energy meter main body one side upper position is provided with firewire incoming line terminal and firewire outgoing line terminal, electric energy meter main body one side upper position is provided with zero line incoming line terminal and zero line outgoing line terminal, the side of electric energy meter main body is provided with cover, the side of cover is provided with two groups of notches, after the attribute label of wiring terminal is pasted on label plate, first incoming line and outgoing line of zero line are connected on zero line incoming line terminal and zero line outgoing line terminal respectively, then release the location of connecting plate, cooperate with the location slot and the location column to be removed with cover, the two notches of upper position are removed to the position of firewire incoming line terminal and firewire outgoing line terminal, i. e. the connection of firewire can be carried out, to prevent wire connection mistake, solve the problem that the existing electric energy meter is difficult to accurately and conveniently wire.

Description

Technical Field

[0001] This utility model relates to the field of electricity meter technology, specifically to an electricity meter that prevents incorrect connection. Background Technology

[0002] An electricity meter is an instrument used to measure electrical energy. Also known as a kilowatt-hour meter, it measures various electrical quantities. When using an electricity meter, it's important to note that under low voltage (not exceeding 500 volts) and low current (tens of amps) conditions, the meter can be directly connected to the circuit for measurement.

[0003] Patent CN203148998U discloses a misconnection prevention energy meter, which includes an energy meter body. A junction box is provided on the lower side of the energy meter body. The junction box is provided with a plurality of inlet terminals and outlet terminals. The inlet terminals and outlet terminals are arranged horizontally. This device makes it easy to distinguish between inlet terminals and outlet terminals by offsetting the lower end faces of the inlet terminals and outlet terminals vertically, thereby preventing wiring errors. Since the inlet terminals and outlet terminals are offset from each other, it avoids the possibility of electric arcing due to the wires being too close together, thus making it safer.

[0004] However, this device avoids the problem of incorrect wiring by setting the input and output terminals in a staggered manner. This staggered wiring method not only greatly reduces the aesthetics of the energy meter, but also leads to uneven wire lengths. As a result, the wire length needs to be adjusted according to the position of the wiring terminals, which reduces the convenience of wiring. Therefore, a misconnection-proof energy meter is proposed to solve the problem of the existing energy meter's difficulty in accurately and conveniently wiring. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a power meter that prevents incorrect wiring, thus solving the aforementioned problems.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a misconnection-proof energy meter, comprising an energy meter body, wherein a live wire inlet terminal and a live wire outlet terminal are provided on one upper side of the energy meter body, a neutral wire inlet terminal and a neutral wire outlet terminal are provided on one upper side of the energy meter body, a cover is provided on one side of the energy meter body, and two sets of slots are provided on one side of the cover, a base plate is fixedly connected to the bottom of the energy meter body, connecting plates are fixedly connected to both ends of the cover, four wiring slots are provided on the bottom of the base plate, a limit mechanism is provided between the connecting plate and the base plate, two label plates are provided on one side of the cover, a limit groove is symmetrically and penetrates one end of the connecting plate, and limit posts are screwed to both ends of the energy meter body.

[0009] Preferably, each group of slots consists of two slots, and the two groups of slots are centrally symmetrically distributed.

[0010] Preferably, when the cover is in the initial position, the two slots in the lower position correspond to the positions of the neutral wire inlet terminal and the neutral wire outlet terminal, respectively.

[0011] Preferably, the limiting post is located in the inner cavity of the limiting slide groove and the two are slidably connected. When the cover moves down to the top of the inner cavity of the limiting slide groove, the two slots at the upper position correspond to the positions of the live wire inlet terminal and the live wire outlet terminal, respectively.

[0012] Preferably, the limiting mechanism includes movable grooves formed at both ends of the base plate, the inner cavity of the movable groove is provided with a retaining plate, the top edge of the retaining plate is provided with a chamfer, and the inner cavity of the movable groove is provided with a spring.

[0013] Preferably, the two ends of the spring are connected to the moving groove and the retaining plate respectively, and the connecting plate has a retaining groove at the corresponding position facing the moving groove.

[0014] (III) Beneficial Effects

[0015] 1. This anti-misconnection energy meter, after affixing the terminal attribute label to the label plate, first connects the neutral wire inlet and outlet to the neutral wire inlet and outlet terminals respectively. Then, release the limiting position of the connection plate. With the help of the limiting slide and limiting post, along with the cover, it moves down. The two upper slots then move down to the positions of the live wire inlet and outlet terminals, allowing the live wire to be connected. This prevents incorrect wire connection and solves the problem of existing energy meters being difficult to connect accurately and conveniently.

[0016] 2. This anti-misconnection energy meter, when the cover is in the initial position and the neutral wire is connected, moves the cover downwards via the connecting plate. During this process, with the help of the chamfer, the locking plate enters the moving groove, and moves downwards along with the cover along with the limiting slide groove and the limiting post. The two upper slots then move down to the positions of the live wire inlet terminal and the live wire outlet terminal, allowing for the connection of the live wire. Conversely, after the connection is completed, the connecting plate moves upwards, and with the help of the spring force, the locking plate re-enters the locking groove to fix the cover position. This facilitates wiring while improving the protection of the wiring terminals on the main body of the energy meter. Attached Figure Description

[0017] Figure 1 This is a structural diagram of the present utility model;

[0018] Figure 2 This is a structural diagram of the present utility model;

[0019] Figure 3 This is a cross-sectional view of the structure of this utility model.

[0020] In the diagram: 1. Electricity meter body; 2. Live wire inlet terminal; 3. Live wire outlet terminal; 4. Neutral wire inlet terminal; 5. Neutral wire outlet terminal; 6. Cover; 7. Groove; 8. Base plate; 9. Connecting plate; 10. Wiring groove; 11. Limiting mechanism; 111. Moving groove; 112. Card plate; 113. Chamfer; 114. Spring; 115. Card slot; 12. Label plate; 13. Limiting slide groove; 14. Limiting post. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example: Please refer to Figure 1-3 An anti-misconnection energy meter includes an energy meter body 1. A live wire inlet terminal 2 and a live wire outlet terminal 3 are located on one upper side of the energy meter body 1. A neutral wire inlet terminal 4 and a neutral wire outlet terminal 5 are also located on one upper side of the energy meter body 1. A cover 6 is located on one side of the energy meter body 1. Two sets of slots 7 are opened on one side of the cover 6. A base plate 8 is fixedly connected to the bottom of the energy meter body 1. Connecting plates 9 are fixedly connected to both ends of the cover 6. Four wiring slots 10 are opened at the bottom of the base plate 8. A limit mechanism 11 is provided between the connecting plate 9 and the base plate 8. Two label plates 12 are located on one side of the cover 6. A limit groove 13 is symmetrically and penetrates one end of the connecting plate 9. Limit posts 14 are symmetrically screwed to both ends of the energy meter body 1.

[0023] Furthermore, each set of slots 7 consists of two slots 7, and the two sets of slots 7 are centrally symmetrically distributed.

[0024] Furthermore, when the cover 6 is in the initial position, the two slots 7 in the lower position correspond to the positions of the neutral wire inlet terminal 4 and the neutral wire outlet terminal 5, respectively.

[0025] Furthermore, the limiting post 14 is located in the inner cavity of the limiting slide groove 13 and the two are slidably connected. When the cover 6 moves down to the top of the inner cavity of the limiting slide groove 13, the two slots 7 at the upper position correspond to the positions of the live wire inlet terminal 2 and the live wire outlet terminal 3, respectively.

[0026] Furthermore, the limiting mechanism 11 includes a moving groove 111 formed at both ends of the base plate 8. The inner cavity of the moving groove 111 is provided with a retaining plate 112. The top edge of the retaining plate 112 is provided with a chamfer 113. The inner cavity of the moving groove 111 is provided with a spring 114.

[0027] Furthermore, the two ends of the spring 114 are connected to the moving groove 111 and the locking plate 112 respectively. The connecting plate 9 has a locking groove 115 facing the moving groove 111. When the cover 6 is in the initial position and the neutral wire is connected, the connecting plate 9 drives the cover 6 to move down. During the process, with the chamfer 113, the locking plate 112 enters the moving groove 111 and moves down with the cover 6 along with the limiting slide groove 13 and the limiting post 14. The two upper slots 7 then move down to the positions of the live wire inlet terminal 2 and the live wire outlet terminal 3, so that the live wire can be connected. Conversely, after the connection is completed, the connecting plate 9 moves up, and with the elastic force of the spring 114, the locking plate 112 re-enters the locking groove 115 to fix the position of the cover 6. This facilitates wiring and improves the protection effect on the wiring terminals on the main body 1 of the electricity meter.

[0028] Working principle: Before using this anti-misconnection energy meter, after affixing the terminal attribute label to the label plate 12, first connect the neutral wire inlet and outlet to the neutral wire inlet terminal 4 and neutral wire outlet terminal 5 respectively. Then, release the limit of the connecting plate 9. With the cooperation of the limit slide 13 and the limit post 14, along with the cover 6, the two upper slots 7 will move down to the positions of the live wire inlet terminal 2 and live wire outlet terminal 3, so that the live wire can be connected. This prevents the wires from being connected incorrectly and solves the problem of the existing energy meters being difficult to connect accurately and conveniently. When the cover 6 is in the initial position and... After the neutral wire is connected, the cover 6 is moved down by the connecting plate 9. During the process, with the chamfer 113, the locking plate 112 enters the moving groove 111, and moves down with the limiting slide groove 13 and the limiting post 14 along with the cover 6. The two upper slots 7 then move down to the positions of the live wire inlet terminal 2 and the live wire outlet terminal 3, so that the live wire can be connected. Conversely, after the connection is completed, the connecting plate 9 is moved up, and with the elastic force of the spring 114, the locking plate 112 re-enters the locking groove 115 to fix the position of the cover 6. This facilitates wiring and improves the protection of the wiring terminals on the main body 1 of the electricity meter.

[0029] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A power meter designed to prevent incorrect wiring, comprising a power meter body (1), characterized in that: The main body (1) of the electricity meter has a live wire inlet terminal (2) and a live wire outlet terminal (3) on one side near the top. The main body (1) of the electricity meter has a neutral wire inlet terminal (4) and a neutral wire outlet terminal (5) on one side near the top. The main body (1) of the electricity meter has a cover (6) on one side. The cover (6) has two sets of slots (7) on one side. The bottom of the main body (1) of the electricity meter is fixedly connected to a base plate (8). The two ends of the cover (6) are fixedly connected to connecting plates (9). The bottom of the base plate (8) has four wiring slots (10). A limit mechanism (11) is provided between the connecting plate (9) and the base plate (8). The cover (6) has two label plates (12) on one side. One end of the connecting plate (9) is symmetrically and has a through-hole limit groove (13). The two ends of the main body (1) of the electricity meter are symmetrically connected to limit posts (14).

2. The mistake-proof electric energy meter according to claim 1, characterized in that: Each set of slots (7) consists of two slots (7), and the two sets of slots (7) are centrally symmetrically distributed.

3. The anti-misconnection energy meter according to claim 1, characterized in that: When the cover (6) is in the initial position, the two slots (7) at the lower position correspond to the positions of the neutral wire inlet terminal (4) and the neutral wire outlet terminal (5), respectively.

4. The mistake-proof electric energy meter according to claim 1, characterized in that: The limiting post (14) is located in the inner cavity of the limiting slide groove (13) and the two are slidably connected. When the cover (6) moves down to the top of the inner cavity of the limiting post (14) and the limiting slide groove (13), the two slots (7) at the upper position correspond to the positions of the live wire inlet terminal (2) and the live wire outlet terminal (3) respectively.

5. The mistake-proof electric energy meter according to claim 1, characterized in that: The limiting mechanism (11) includes a moving groove (111) opened at both ends of the base plate (8), a retaining plate (112) is provided in the inner cavity of the moving groove (111), a chamfer (113) is provided at one end of the top edge of the retaining plate (112), and a spring (114) is provided in the inner cavity of the moving groove (111).

6. The fool-proof electric energy meter as claimed in claim 5, wherein: The two ends of the spring (114) are connected to the moving groove (111) and the locking plate (112) respectively, and the connecting plate (9) has a locking groove (115) facing the moving groove (111) at the corresponding position.

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