Switching terminal structure of three-phase guide rail electric energy meter

Abstract

The utility model provides a conversion terminal structure of a three-phase guide rail electric energy meter, the electric energy meter comprises a wire inlet arranged at an upper position and a wire outlet arranged at a lower position, the conversion terminal structure comprises a conversion body, a wire inlet structure connected with the wire inlet of the electric energy meter and a wire outlet structure connected with the wire outlet of the electric energy meter, the conversion terminal structure is characterized in that the conversion terminal structure is further provided with a lead-out terminal which is located below the wire outlet structure and used for uniformly leading out a wire of the wire inlet structure and a wire of the wire outlet structure, and a conversion cable is arranged between the wire inlet structure and the lead-out terminal. Therefore, the defect that the product needs to be re-introduced when the product is checked is overcome.

Description

Technical Field

[0001] This utility model relates to the field of electricity meter circuit conversion technology, specifically to a conversion terminal structure for a three-phase rail electricity meter. Background Technology

[0002] Three-phase rail-mounted energy meters can accurately measure energy consumption, monitor power system parameters in real time, control and protect the power system, and provide necessary data and information for the operation and management of the power system. In existing technology, most three-phase rail-mounted energy metering products have the same wiring terminals as ordinary three-phase wall-mounted meters, with the terminals located on the bottom, allowing the use of conventional three-phase energy meter calibration devices. However, with the diversification of market demands and the increasing need for three-phase rail-mounted energy meters, whose wiring terminals are located on both the top and bottom sides of the meter, the company needs to introduce additional three-phase rail-mounted energy meter calibration devices to meet market demands and to calibrate these meters with their wiring terminals located on the top and bottom sides, thus increasing the company's costs. Utility Model Content

[0003] Therefore, the technical problem to be solved by this utility model is to overcome the defect that the wiring terminals are located on the upper and lower sides of the energy meter in the prior art, which leads to the need to reintroduce them when calibrating the product. Thus, a conversion terminal structure for a three-phase rail energy meter that allows the energy meter with wiring terminals located on the upper and lower sides of the energy meter to be adapted to conventional three-phase energy meter calibration devices is provided.

[0004] Therefore, this utility model provides a transfer terminal structure for a three-phase rail energy meter. The energy meter includes an inlet located at the top and an outlet located at the bottom. The transfer terminal structure includes a transfer body, an inlet structure connected to the inlet of the energy meter, and an outlet structure connected to the outlet of the energy meter. The transfer terminal structure also includes an outlet terminal located below the outlet structure for connecting the wires of the inlet structure and the wires of the outlet structure together. A transfer cable is provided between the inlet structure and the outlet terminal.

[0005] Furthermore: the incoming line structure is located above the adapter body, the outgoing line structure is located below the adapter body, and the adapter cable is located between the incoming line structure and the outgoing terminal, and is used to lead the current of the incoming line structure to the outgoing terminal.

[0006] Furthermore: the inlet structure includes at least one inlet pin for connecting to the inlet port of the electricity meter, and the outlet structure includes at least one outlet pin for connecting to the outlet port of the electricity meter.

[0007] Furthermore: the incoming line structure includes an A-phase incoming line pin, a B-phase incoming line pin, and a C-phase incoming line pin; the outgoing line structure includes an A-phase outgoing line pin, a B-phase outgoing line pin, and a C-phase outgoing line pin; the adapter cable includes an A-phase cable, a B-phase cable, and a C-phase cable; the A-phase incoming line pin and the A-phase outgoing line pin are connected by an A-phase cable; the B-phase incoming line pin and the B-phase outgoing line pin are connected by a B-phase cable; and the C-phase incoming line pin and the C-phase outgoing line pin are connected by a C-phase cable.

[0008] Furthermore: the output terminals include an A-phase output terminal, a B-phase output terminal, and a C-phase output terminal. The A-phase output terminal is provided with an A-phase inlet connected to the A-phase cable and an A-phase outlet connected to the A-phase output pin. The B-phase output terminal is provided with a B-phase inlet connected to the B-phase cable and a B-phase outlet connected to the B-phase output pin. The C-phase output terminal is provided with a C-phase inlet connected to the C-phase cable and a C-phase outlet connected to the C-phase output pin.

[0009] The technical solution of this utility model has the following advantages:

[0010] 1. This utility model provides a converter terminal structure for a three-phase rail-mounted energy meter. When verifying three-phase rail-mounted energy meters with terminals located on the top and bottom sides, simply install the converter terminal onto the energy meter, and then use a conventional three-phase energy meter verification device for verification. During the connection process, the inlet structure needs to be connected to the inlet port on top of the energy meter, and then connected to the outlet terminal via a converter cable. The outlet structure is connected to the outlet port on the energy meter, with one end inserted into the outlet port and the other end inserted into the outlet terminal. The outlet terminal can be connected to a conventional three-phase energy meter verification device for testing. In this way, the company does not need to import an additional batch of verification equipment suitable for terminals located on the top and bottom sides of the energy meter, thus effectively saving costs.

[0011] 2. The present invention provides a three-phase rail energy meter adapter terminal structure. After the inlet structure is connected to the inlet port and the outlet structure is connected to the outlet port, the inlet structure will be connected to the outlet terminal via an adapter cable. When the calibration equipment is turned on, the current will first flow through the outlet terminal to the adapter cable, then through the inlet structure to the inlet port of the energy meter, then through the energy meter, from the outlet port below the energy meter to the outlet structure, and finally from the outlet structure to the outlet terminal, and then out from the outlet terminal. Attached Figure Description

[0012] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the adapter terminal structure;

[0014] Figure 2 This is a side view of the adapter terminal structure.

[0015] Explanation of reference numerals in the attached figures:

[0016] 1. Adapter body; 2. Inlet structure; 21. Phase A inlet pin; 22. Phase B inlet pin; 23. Phase C inlet pin; 3. Outlet structure; 31. Phase A outlet pin; 32. Phase B outlet pin; 33. Phase C outlet pin; 4. Outlet terminals; 41. Phase A outlet terminal; 411. Phase A inlet; 412. Phase A outlet; 42. Phase B outlet terminal; 421. Phase B inlet; 422. Phase B outlet; 43. Phase C outlet terminal; 431. Phase C inlet; 432. Phase C outlet; 5. Adapter cable; 51. Phase A cable; 52. Phase B cable; 53. Phase C cable. Detailed Implementation

[0017] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0018] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 based on the specific circumstances.

[0020] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0021] Example

[0022] This embodiment provides a transfer terminal structure for a three-phase rail energy meter. The energy meter includes an inlet located at the top and an outlet located at the bottom. The transfer terminal structure includes a transfer body 1, an inlet structure 2 connected to the inlet of the energy meter, and an outlet structure 3 connected to the outlet of the energy meter. The transfer terminal structure also includes an outlet terminal 4 located below the outlet structure 3 for connecting the wires of the inlet structure 2 and the outlet structure 3 together. A transfer cable 5 is provided between the inlet structure 2 and the outlet terminal 4.

[0023] The specific improvements mentioned above are as follows: Figure 1 As shown, compared to existing technologies, when verifying three-phase rail-mounted energy meters with terminals located on the top and bottom sides of the meter, it is only necessary to install the adapter terminal onto the energy meter. A conventional three-phase energy meter verification device can then be used. During the connection process, the inlet structure 2 needs to be connected to the inlet port on top of the energy meter, and then connected to the outlet terminal 4 via the adapter cable 5. The outlet structure 3 is connected to the outlet port on the energy meter, with one end inserted into the outlet port and the other end inserted into the outlet terminal 4. The outlet terminal 4 can be connected to a conventional three-phase energy meter verification device for testing. This eliminates the need for the company to import additional verification equipment suitable for terminals located on the top and bottom sides of the energy meter, effectively saving costs.

[0024] Based on the above embodiments: the incoming line structure 2 is located above the adapter body 1, the outgoing line structure 3 is located below the adapter body 1, and the adapter cable 5 is located between the incoming line structure 2 and the outgoing terminal 4, and is used to lead the current of the incoming line structure 2 to the outgoing terminal 4.

[0025] The specific improvements mentioned above are as follows: Figure 1As shown, after the inlet structure 2 is connected to the inlet port and the outlet structure 3 is connected to the outlet port, the inlet structure 2 will be connected to the outlet terminal 4 through the adapter cable 5. When the testing equipment is turned on, the current will first flow through the outlet terminal 4 to the adapter cable 5, then through the inlet structure 2 to the inlet port of the energy meter, then through the energy meter, and from the outlet port below the energy meter to the outlet structure 3, and finally from the outlet structure 3 to the outlet terminal 4, and then out from the outlet terminal 4.

[0026] Based on the above embodiments: the inlet structure 2 includes at least one inlet pin for connecting to the inlet port of the electricity meter, and the outlet structure 3 includes at least one outlet pin for connecting to the outlet port of the electricity meter.

[0027] Based on the above embodiments: the incoming line structure 2 includes an A-phase incoming line pin 21, a B-phase incoming line pin 22, and a C-phase incoming line pin 23; the outgoing line structure 3 includes an A-phase outgoing line pin 31, a B-phase outgoing line pin 32, and a C-phase outgoing line pin 33; the adapter cable 5 includes an A-phase cable 51, a B-phase cable 52, and a C-phase cable 53; the A-phase incoming line pin 21 and the A-phase outgoing line pin 31 are connected by the A-phase cable 51; the B-phase incoming line pin 22 and the B-phase outgoing line pin 32 are connected by the B-phase cable 52; and the C-phase incoming line pin 23 and the C-phase outgoing line pin 33 are connected by the C-phase cable 53.

[0028] Based on the above embodiments: the output terminal 4 includes an A-phase output terminal 41, a B-phase output terminal 42, and a C-phase output terminal 43. The A-phase output terminal 41 is provided with an A-phase inlet 411 connected to the A-phase cable 51 and an A-phase outlet 412 connected to the A-phase outlet pin 31. The B-phase output terminal 42 is provided with a B-phase inlet 421 connected to the B-phase cable 52 and a B-phase outlet 422 connected to the B-phase outlet pin 32. The C-phase output terminal 43 is provided with a C-phase inlet 431 connected to the C-phase cable 53 and a C-phase outlet 432 connected to the C-phase outlet pin 33.

[0029] The specific improvements mentioned above are as follows: Figure 1 and Figure 2The described inductor structure 2 includes an A-phase inductor pin 21, a B-phase inductor pin 22, and a C-phase inductor pin 23. The outlet structure 3 includes an A-phase outlet pin 31, a B-phase outlet pin 32, and a C-phase outlet pin 33, which are respectively connected to the three live wires on the energy meter. During the connection process, the A-phase inductor pin 21, the A-phase cable 51, and the A-phase outlet pin 31 are interconnected. Similarly, the B-phase inductor pin 22, the B-phase cable 52, and the B-phase outlet pin 32 are interconnected. The C-phase inductor pin 23, the C-phase cable 53, and the C-phase outlet pin 33 are interconnected. During the verification process, the current first enters through the A-phase inductor 411, then is transmitted through the A-phase cable 51 to the A-phase inductor pin 21, and then... The current flows out from the inlet of the electricity meter, passes through the electricity meter, and then flows out through the outlet, finally exiting through the A-phase outlet 412 to complete the verification. Similarly, during the verification process, the current simultaneously enters through the B-phase inlet 421, then is transmitted through the B-phase cable 52 to the B-phase inlet pin 22, then flows out through the inlet of the electricity meter, passes through the electricity meter, and then flows out through the outlet of the electricity meter, finally exiting through the B-phase outlet 422 to complete the verification. Similarly, during the verification, the current simultaneously enters through the C-phase inlet 431, then is transmitted through the C-phase cable 53 to the C-phase inlet pin 23, then flows out through the inlet of the electricity meter, passes through the electricity meter, and then flows out through the outlet of the electricity meter, finally exiting through the C-phase outlet 432 to complete the verification.

[0030] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A transfer terminal structure for a three-phase rail energy meter, characterized in that: The electricity meter includes an inlet located at the top and an outlet located at the bottom. The adapter terminal structure includes an adapter body (1), an inlet structure (2) connected to the inlet of the electricity meter, and an outlet structure (3) connected to the outlet of the electricity meter. The adapter terminal structure also includes an outlet terminal (4) located below the outlet structure (3) for connecting the wires of the inlet structure (2) and the wires of the outlet structure (3) together. An adapter cable (5) is provided between the inlet structure (2) and the outlet terminal (4).

2. The adapter terminal structure of a three-phase rail energy meter according to claim 1, characterized in that: The incoming line structure (2) is located above the adapter body (1), the outgoing line structure (3) is located below the adapter body (1), and the adapter cable (5) is located between the incoming line structure (2) and the outgoing terminal (4), and is used to lead the current of the incoming line structure (2) to the outgoing terminal (4).

3. The adapter terminal structure of a three-phase rail energy meter according to claim 2, characterized in that: The inlet structure (2) includes at least one inlet pin for connecting to the inlet port of the electricity meter, and the outlet structure (3) includes at least one outlet pin for connecting to the outlet port of the electricity meter.

4. The adapter terminal structure of a three-phase rail energy meter according to claim 3, characterized in that: The incoming line structure (2) includes an A-phase incoming line pin (21), a B-phase incoming line pin (22), and a C-phase incoming line pin (23). The outgoing line structure (3) includes an A-phase outgoing line pin (31), a B-phase outgoing line pin (32), and a C-phase outgoing line pin (33). The adapter cable (5) includes an A-phase cable (51), a B-phase cable (52), and a C-phase cable (53). The A-phase incoming line pin (21) and the A-phase outgoing line pin (31) are connected by the A-phase cable (51). The B-phase incoming line pin (22) and the B-phase outgoing line pin (32) are connected by the B-phase cable (52). The C-phase incoming line pin (23) and the C-phase outgoing line pin (33) are connected by the C-phase cable (53).

5. The adapter terminal structure of a three-phase rail energy meter according to claim 4, characterized in that: The output terminal (4) includes an A-phase output terminal (41), a B-phase output terminal (42), and a C-phase output terminal (43). The A-phase output terminal (41) is provided with an A-phase inlet (411) connected to the A-phase cable (51) and an A-phase outlet (412) connected to the A-phase outlet pin (31). The B-phase output terminal (42) is provided with a B-phase inlet (421) connected to the B-phase cable (52) and a B-phase outlet (422) connected to the B-phase outlet pin (32). The C-phase output terminal (43) is provided with a C-phase inlet (431) connected to the C-phase cable (53) and a C-phase outlet (432) connected to the C-phase outlet pin (33).

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