Electric energy meter

Abstract

The utility model relates to the technical field of electric energy meters, in particular to an electric energy meter. The electric energy meter comprises a housing in which at least one group of current transformer assembly is arranged; and the anti-magnetic iron plates are respectively arranged on the opposite inner side walls of the shell. According to the electric energy meter, the anti-magnetic iron plates are arranged on the opposite inner side walls in the shell and can block electromagnetism, so that it is guaranteed that other electric devices in the shell are free of electromagnetic interference, display errors of the electric energy meter are prevented, it is avoided that strong magnetic shielding covers are installed on all the electric devices, the size of the electric energy meter is effectively reduced, cost is reduced, and practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric energy meters, in particular to an electric energy meter. Background Art

[0002] An electric energy meter is an instrument used to measure electric energy. In daily life, electric energy meters are usually set up in multiple groups so that they can be used to detect the electric energy used by different residents on the same floor. In order to prevent the electric energy meter from being interfered with by electromagnetic interference, the electric energy meter needs to have the ability to resist electromagnetic interference.

[0003] In the prior art, an anti-strong magnetic shielding cover is provided on each relay and current transformer in the electric energy meter to ensure that the relay and the current transformer will not be interfered with by electromagnetic interference. However, the electric energy meter with this structure needs to be provided with an anti-strong magnetic shielding cover on each relay and current transformer, which will increase the cost of the electric energy meter and increase the size of the electric energy meter, which is not conducive to installation in residential buildings that require the electric energy meter to be smaller in size. Utility Model Content

[0004] Therefore, the technical problem to be solved by the utility model is that the existing electric energy meter needs to be equipped with an anti-strong magnetic shielding cover on each relay and current transformer, which will increase the cost of the electric energy meter and increase the size of the electric energy meter, which is not conducive to installation in residential buildings that require the electric energy meter to be smaller in size. Thus, an electric energy meter is provided.

[0005] In order to solve the above problems, the utility model provides an electric energy meter, comprising:

[0006] A housing, wherein at least one set of current transformer components is arranged in the housing;

[0007] The anti-magnetic plates are respectively arranged on the inner side walls opposite to the shell.

[0008] Furthermore, a hook is provided on one of the shell and the anti-magnet plate, and a slot cooperating with the hook is provided on the other of the shell and the anti-magnet plate, and the anti-magnet plate is fixed in the shell via the hook and the slot.

[0009] Furthermore, the hook is arranged at the four corners of the shell, the anti-magnet plate includes a main body and a bending portion, the bending portions are respectively arranged at both ends of the main body, the main body and the bending portion are perpendicular to each other, the slot is arranged on the bending portion, the main body and the bending portion form a U-shaped structure, and the opening of the U-shaped structure faces the anti-magnet plate opposite.

[0010] Furthermore, the current transformer assembly includes a relay and a current transformer, the relay and the current transformer respectively have a first connecting copper plate and a second connecting copper plate, the first connecting copper plate is fixedly connected to the second connecting copper plate, so that the relay and the current transformer are fixedly connected.

[0011] Furthermore, an input wiring port and an output wiring port are respectively provided on two opposite side walls of the shell, the relay is arranged on a side of the shell close to the output wiring port, and the current transformer is arranged on a side of the shell close to the input wiring port.

[0012] Furthermore, a PCB board is arranged between the current transformer assembly and the anti-magnetic plate, and the PCB board is electrically connected to the current transformer assembly.

[0013] Furthermore, a voltage line is provided on the second connecting copper plate.

[0014] Furthermore, the relay and the current transformer are respectively provided with a relay pin and a current transformer pin.

[0015] The utility model has the following advantages:

[0016] The utility model discloses an electric energy meter. Anti-magnetic plates are arranged on the inner side walls opposite to each other in a shell. The anti-magnetic plates can block electromagnetics, thereby ensuring that other electrical components in the shell are protected from electromagnetic interference and preventing the electric energy meter from displaying errors. Furthermore, it is avoided to install an anti-strong magnetic shielding cover on each electrical component, thereby effectively reducing the size of the electric energy meter, reducing the cost and improving the practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is a schematic diagram of the structure of an electric energy meter in an embodiment of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the anti-magnetic plate in the embodiment of the utility model;

[0020] Figure 3 This is a front view of an electric energy meter in an embodiment of the utility model;

[0021] Figure 4It is a schematic diagram of a current transformer assembly in an embodiment of the utility model;

[0022] Description of reference numerals:

[0023] 1. Shell; 2. Anti-magnetic plate; 3. Hook; 4. Slot; 5. Bending part; 6. Input wiring port; 7. Output wiring port; 8. PCB board; 9. Relay; 10. Current transformer; 11. First connecting copper plate; 12. Second connecting copper plate; 13. Relay pin; 14. Current transformer pin; 15. Voltage line. DETAILED DESCRIPTION

[0024] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0028] like Figures 1 to 4 As shown, this embodiment discloses an electric energy meter, comprising: a housing 1 and an anti-magnetic plate 2. At least one set of current transformer components is arranged in the housing 1. The anti-magnetic plates 2 are arranged on opposite inner side walls of the housing 1 respectively.

[0029] Specifically, in this embodiment, a pair of counter magnet plates 2 is disposed in the housing 1. Figure 3 In the figure, a pair of anti-magnetic plates 2 are respectively arranged on the left and right inner walls of the shell 1. The anti-magnetic plates 2 can block the electromagnetic waves transmitted by the electric energy meters arranged on the left and right sides of the shell 1, thereby ensuring that the electrical components in the shell 1 are free from electromagnetic interference and ensure the normal operation of the electrical components.

[0030] Preferably, in this embodiment, three groups of current transformer assemblies are arranged in the housing 1. In other optional embodiments, one group, two groups or other numbers of current transformer assemblies may be arranged in the housing 1.

[0031] Furthermore, a hook 3 is provided on one of the shell 1 and the anti-magnet plate 2, and a slot 4 cooperating with the hook 3 is provided on the other of the shell 1 and the anti-magnet plate 2. The anti-magnet plate 2 is fixed in the shell 1 through the hook 3 and the slot 4.

[0032] Preferably, in this embodiment, the housing 1 is provided with a hook 3, and the anti-magnetic plate 2 is provided with a slot 4 that cooperates with the hook 3. In other optional embodiments, the housing 1 is provided with a slot 4, and the anti-magnetic plate 2 is provided with a hook 3 that cooperates with the slot 4.

[0033] Furthermore, the hook 3 is arranged at the four corners of the shell 1, and the anti-magnet plate 2 includes a main body and a bending portion 5. The bending portions 5 are respectively arranged at both ends of the main body, and the main body and the bending portion 5 are perpendicular to each other. The slot 4 is arranged on the bending portion 5, and the main body and the bending portion 5 form a U-shaped structure, and the opening of the U-shaped structure faces the opposite anti-magnet plate 2.

[0034] Specifically, Figures 1 to 3 As shown, hooks 3 are provided at the four corners of the housing 1, and the anti-magnet plate 2 includes a main body and a bending portion 5. The upper and lower ends of the main body are provided with bending portions 5, and the bending portions 5 are perpendicular to the main body. The bending portions 5 are provided with a slot 4, and the anti-magnet plate 2 is engaged with the hooks 3 through the slot 4 of the bending portion 5, so as to be fixed in the housing 1. The main body and the bending portion 5 form a U-shaped structure, and the opening direction of the U-shaped structure faces the anti-magnet plate 2 arranged oppositely, and there is a gap between the anti-magnet plate 2 and the inner wall of the housing 1.

[0035] Further, such as Figure 3 As shown, a PCB board 8 is arranged between the anti-magnetic plates 2 of the current transformer assembly, and the PCB board 8 is electrically connected to the current transformer assembly.

[0036] Furthermore, the current transformer assembly includes a relay 9 and a current transformer 10, and the relay 9 and the current transformer 10 respectively have a first connecting copper plate 11 and a second connecting copper plate 12, and the first connecting copper plate is fixedly connected to the second connecting copper plate 12, so that the relay 9 and the current transformer 10 are fixedly connected.

[0037] Specifically, Figure 4 As shown, the side of the relay 9 facing the current transformer 10 has a first connecting copper plate 11, and the side of the current transformer 10 facing the relay 9 has a second connecting copper plate 12. The first connecting copper plate 11 and the second connecting copper plate 12 are both L-shaped structures. The first side of the first connecting copper plate 11 is fixedly connected to the relay 9, and the second side of the first connecting copper plate 11 faces the current transformer 10. The first side of the second connecting copper plate 12 is fixedly connected to the current transformer 10, and the second side of the second connecting copper plate 12 faces the relay 9. The end face of the second side of the first connecting copper plate 11 is attached to the end face of the second side of the second connecting copper plate 12 and welded to fix it, so that the relay 9 and the current transformer 10 are fixedly connected.

[0038] Furthermore, an input wiring port 6 and an output wiring port 7 are respectively provided on two opposite side walls of the housing 1 , a relay 9 is provided on a side of the housing 1 close to the output wiring port 7 , and a current transformer 10 is provided on a side of the housing 1 close to the input wiring port 6 .

[0039] Specifically, Figure 1 As shown, the upper and lower side walls of the housing 1 are respectively provided with input wiring ports 6 and output wiring ports 7. In this embodiment, three input wiring ports 6 are provided on the upper side wall of the housing 1; three output wiring ports 7 are provided on the lower side wall of the housing 1. The relay 9 is provided below the current transformer 10, the relay 9 is close to the output wiring port 7, and the current transformer 10 is close to the input wiring port 6. Three relays 9 and three current transformers 10 are provided in the housing 1, and adjacent relays 9 fit each other, and adjacent current transformers 10 also fit each other, so that the size of the electric energy meter can be reduced.

[0040] Further, such as Figure 4 As shown, a voltage line 15 is provided on the second connecting copper plate 12 .

[0041] Further, such as Figure 4 As shown, the relay 9 and the current transformer 10 are also provided with a relay pin 13 and a current transformer pin 14 respectively.

[0042] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. An electric energy meter, characterized in that: include: A housing (1), wherein at least one set of current transformer components is arranged in the housing (1); The anti-magnetic plate (2) is arranged on the inner side wall opposite to the shell (1).

2. The electric energy meter according to claim 1, characterized in that: A hook (3) is provided on one of the shell (1) and the anti-magnet plate (2), and a slot (4) cooperating with the hook (3) is provided on the other of the shell (1) and the anti-magnet plate (2); the anti-magnet plate (2) is fixedly arranged in the shell (1) via the hook (3) and the slot (4).

3. The electric energy meter according to claim 2, characterized in that: The hook (3) is arranged at the four corners of the shell (1); the anti-magnet plate (2) comprises a main body and a bending portion (5); the bending portions (5) are respectively arranged at both ends of the main body; the main body and the bending portion (5) are perpendicular to each other; the slot (4) is arranged on the bending portion (5); the main body and the bending portion (5) form a U-shaped structure; the opening of the U-shaped structure faces the anti-magnet plate (2) opposite thereto.

4. The electric energy meter according to claim 1, characterized in that: The current transformer assembly comprises a relay (9) and a current transformer (10), wherein the relay (9) and the current transformer (10) respectively have a first connecting copper plate (11) and a second connecting copper plate (12), and the first connecting copper plate (11) is fixedly connected to the second connecting copper plate (12), so that the relay (9) and the current transformer (10) are fixedly connected.

5. The electric energy meter according to claim 4, characterized in that: An input wiring port (6) and an output wiring port (7) are respectively arranged on two opposite side walls of the housing (1); the relay (9) is arranged on a side of the housing (1) close to the output wiring port (7); and the current transformer (10) is arranged on a side of the housing (1) close to the input wiring port (6).

6. The electric energy meter according to any one of claims 1 to 5, characterized in that: A PCB board (8) is arranged between the current transformer assembly and the anti-magnetic plate (2), and the PCB board (8) is electrically connected to the current transformer assembly.

7. The electric energy meter according to claim 4, characterized in that: A voltage line (15) is provided on the second connecting copper plate (12).

8. The electric energy meter according to claim 4, characterized in that: The relay (9) and the current transformer (10) are also provided with a relay pin (13) and a current transformer pin (14) respectively.

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