Strong magnetic shielding structure of electric energy meter relay

Abstract

The utility model provides a strong magnetic shielding structure of an electric energy meter relay, an electric energy meter comprises a shell, a relay structure and a current terminal structure, the relay structure and the current terminal structure are arranged in the shell, and the relay structure comprises a plurality of relays and a partition plate which wraps the relays and has a strong magnetic prevention function. The partition plate is positioned in the shell, the partition plate comprises a bottom plate and a plurality of shielding plates extending back to the bottom plate on the periphery of the bottom plate, the shielding plates and the bottom plate define a wrapping space for wrapping a plurality of relays, and the strong magnetic shielding structure can effectively prevent the relays from being interfered by strong magnetism.

Description

Technical Field

[0001] This utility model relates to the field of electricity meter technology, specifically to a strong magnetic shielding structure for an electricity meter relay. Background Technology

[0002] An electricity meter is an instrument used to measure the amount of electrical energy consumed in a circuit. Its core function is to accurately record the amount of electricity used by a user over a period of time, serving as the basis for electricity billing. The relay inside the electricity meter enables automatic on / off control of the internal circuit, thereby supporting functions such as remote management, safety protection, and prepayment, ensuring safe electricity use and intelligent operation. In existing technologies, to prevent strong magnets from being placed around the electricity meter to interfere with the relay and metering module, thus achieving the purpose of under-counting electricity or continuous electricity use, an anti-magnetic plate is usually attached to the relay. However, due to the limited coverage of the anti-magnetic plate, the relay's anti-magnetic effect is not good. Once the relay is subjected to strong magnetic interference, it may be unable to control the electricity meter's circuit to disconnect when the power is switched off. Utility Model Content

[0003] Therefore, the technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology, which has a limited range of coverage of the antimagnetic plate, resulting in poor anti-magnetic effect of the relay. Once the relay is subjected to strong magnetic interference, it may cause the circuit of the energy meter to be unable to be disconnected when the switch is pulled. Thus, a strong magnetic shielding structure for the energy meter relay with good anti-magnetic effect is provided.

[0004] Therefore, this utility model provides a strong magnetic shielding structure for an electricity meter relay. The electricity meter includes a housing and a relay structure and a current terminal structure disposed inside the housing. The relay structure includes a plurality of relays and a partition plate with strong magnetic shielding function that wraps around the plurality of relays. The partition plate is positioned inside the housing. The partition plate includes a base plate and a plurality of shielding plates extending away from the base plate around the base plate. The shielding plates and the base plate form a wrapping space that wraps around the plurality of relays.

[0005] Furthermore: the shielding plate includes a first antimagnetic plate and a second antimagnetic plate respectively disposed on the left and right sides of the base plate, and a third antimagnetic plate disposed on one end of the reverse current terminal.

[0006] Furthermore, the first, second, and third antimagnetic plates are all set perpendicular to the base plate.

[0007] Furthermore: the shielding plate includes a first antimagnetic plate and a second antimagnetic plate respectively disposed on the left and right sides of the base plate, and a third antimagnetic plate disposed on one end of the reverse current terminal structure.

[0008] Furthermore: a first positioning device is provided between the base plate and the shell, and a second positioning device is provided between the first antimagnetic plate and / or the second antimagnetic plate and the shell. The first positioning device includes a positioning post provided on one side of the shell or the base plate and a positioning groove provided on the other side and adapted to the positioning post.

[0009] Furthermore, the second positioning device includes a snap-fit ​​post disposed on one of the housing or the first and / or the second antimagnetic plate, and a snap-fit ​​groove disposed on the other and adapted to the snap-fit ​​post.

[0010] Furthermore: the electricity meter is also equipped with a circuit board, and a wire connection structure is provided between the current terminal structure and the circuit board. The current terminal structure includes a current terminal shell and a wire fixing member provided on the current terminal shell. The wire connection structure includes a connecting wire and a plug pin provided at the end of the wire and engaging with the wire fixing member. There is a clearance space between the current terminal structure and the partition plate to avoid relays.

[0011] The technical solution of this utility model has the following advantages:

[0012] 1. This utility model provides a strong magnetic shielding structure for an electricity meter relay. A shielding plate for strong magnetic protection is set inside the housing. During the assembly of the electricity meter, the partition plate can be assembled into the housing first, then the current transformer can be sleeved on the side of the relay, and finally the relay can be connected to the current terminal structure. The partition plate extends upward around its perimeter, which can enclose multiple relays inside. In this way, no matter where the user uses a strong magnet to attract the relay outside the electricity meter, it will not affect the use of the relay. Furthermore, the pre-set partition plate can simultaneously adapt to electricity meter models with different numbers of relays.

[0013] 2. The present invention provides a strong magnetic shielding structure for an electricity meter relay. The first anti-magnetic plate, the second anti-magnetic plate, and the third anti-magnetic plate are respectively arranged on the left side, the right side, and the side opposite to the current terminal structure of the base plate. In this way, no matter which direction the external user uses a strong magnetic force to damage the relay, it can effectively prevent strong magnetic force. Attached Figure Description

[0014] 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.

[0015] Figure 1 This is a schematic diagram of the internal structure of an electricity meter;

[0016] Figure 2 This is a diagram showing the installation structure of the internal partition plate and housing of the electricity meter.

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of an electricity meter;

[0018] Figure 4 This is a schematic diagram of another cross-sectional structure of an electricity meter;

[0019] Figure 5 This is a structural schematic diagram of the wire fixing component;

[0020] Figure 6 This is a schematic diagram of the circuit board and current terminal structure.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Housing; 2. Partition plate; 21. Base plate; 22. Shielding plate; 23. First antimagnetic plate; 24. Second antimagnetic plate; 25. Third antimagnetic plate; 3. Current terminal structure; 31. Current terminal housing; 32. Wire fixing component; 33. Connecting wire; 34. Plug pin; 4. First positioning device; 41. Positioning post; 42. Positioning groove; 5. Second positioning device; 51. Snap-fit ​​post; 52. Snap-fit ​​groove; 6. Circuit board; 7. Wire connection structure. Detailed Implementation

[0023] 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.

[0024] 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.

[0025] 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.

[0026] 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.

[0027] Example

[0028] This embodiment provides a strong magnetic shielding structure for an electricity meter relay. The electricity meter includes a housing 1 and a relay structure and a current terminal structure 3 disposed inside the housing 1. The relay structure includes a plurality of relays and a partition plate 2 that is wrapped around the plurality of relays and has a strong magnetic shielding function. The partition plate 2 is positioned inside the housing 1. The partition plate 2 includes a base plate 21 and a plurality of shielding plates 22 extending away from the base plate 21 around the base plate 21. The shielding plates 22 and the base plate 21 form a wrapping space that wraps around the plurality of relays.

[0029] The specific improvements mentioned above are as follows: Figure 1 and Figure 2 As shown, compared to existing technologies, a shielding plate 22 for strong magnetic field protection is set inside the housing 1. During the assembly of the electricity meter, the partition plate 2 can be assembled into the housing 1 first, then the current transformer can be fitted onto the side of the relay, and finally the relay can be connected to the current terminal structure 3. The partition plate 2 extends upward around its perimeter, which can enclose multiple relays inside the partition plate 2. Thus, no matter where the user uses a strong magnet to attract the relays outside the electricity meter, it will not affect the use of the relays. Furthermore, the partition plate 2 can be pre-set to accommodate electricity meter models with different numbers of relays.

[0030] Based on the above embodiments: the shielding plate 22 includes a first antimagnetic plate 23 and a second antimagnetic plate 24 respectively disposed on the left and right sides of the base plate 21, and a third antimagnetic plate 25 disposed on one end of the reverse current terminal structure 3.

[0031] The specific improvements mentioned above are as follows: Figure 2 As shown, the first antimagnetic plate 23, the second antimagnetic plate 24 and the third antimagnetic plate 25 are respectively set on the left side, the right side and the side opposite to the current terminal structure 3 of the base plate 21. In this way, no matter which direction the external user uses a strong magnetic field to destroy the relay, it can effectively prevent strong magnetic field damage.

[0032] Based on the above embodiments: the first antimagnetic plate 23, the second antimagnetic plate 24 and the third antimagnetic plate 25 are all arranged perpendicularly to the base plate 21.

[0033] Based on the above embodiments: the first antimagnetic plate 23, the second antimagnetic plate 24 and the third antimagnetic plate 25 are all integrally stamped with the base plate 21.

[0034] The specific improvement is as follows: the base plate 21, the first antimagnetic plate 23, the second antimagnetic plate 24 and the third antimagnetic plate 25 are formed by stamping a single metal plate, thus eliminating the welding process between the various metal plates and effectively improving the manufacturing efficiency.

[0035] Based on the above embodiments: a first positioning device 4 is provided between the base plate 21 and the housing 1, and a second positioning device 5 is provided between the first antimagnetic plate 23 and / or the second antimagnetic plate 24 and the housing 1. The first positioning device 4 includes a positioning post 41 provided on one of the housing 1 or the base plate 21 and a positioning groove 42 provided on the other and adapted to the positioning post 41.

[0036] Based on the above embodiments: the second positioning device 5 includes a snap-fit ​​post 51 disposed on one of the housing 1 or the first antimagnetic plate 23 and / or the second antimagnetic plate 24, and a snap-fit ​​groove 52 disposed on the other and adapted to the snap-fit ​​post 51.

[0037] The specific improvements mentioned above are as follows: Figure 3 and Figure 4 As shown, a first positioning device 4 is provided between the base plate 21 and the housing 1 to effectively fix the base plate 21 and the housing 1. The first positioning device 4 includes a plurality of positioning posts 41 provided on the housing 1 and positioning grooves 42 provided on the base plate 21 that are adapted to the positioning posts 41. During installation, the base plate 21 is simply placed inside the housing 1 and pressed to connect the base plate 21 and the housing 1. The positioning posts 41 extend from the housing 1. The first antimagnetic plate 23 and the second antimagnetic plate 24 are provided with slots that are adapted to the positioning posts 41. When the positioning post 41 is inserted into the positioning groove 42, the slots on the first antimagnetic plate 23 and the second antimagnetic plate 24 on both sides will automatically align with the locking post 51 and engage.

[0038] Based on the above embodiments: the electricity meter is further provided with a circuit board 6, and a wire connection structure 7 is provided between the current terminal structure 3 and the circuit board 6. The current terminal structure 3 includes a current terminal shell 31 and a wire fixing member 32 provided on the current terminal shell 31. The wire connection structure 7 includes a connecting wire 33 and a plug pin 34 provided at the end of the wire and snapped with the wire fixing member 32. There is a clearance space between the current terminal structure 3 and the partition plate 2 to avoid relays.

[0039] The specific improvements mentioned above are as follows: Figure 5 and Figure 6 As shown, during the installation process, the relays need to be installed sequentially in the partition plate 2 first, and then the current terminal structure 3 is installed in the corresponding position. One end of the wire connection structure 7 is fixed on the current terminal housing 31, and the other end is connected to the wire fixing member 32. With the setting of the wire fixing member 32, the pin is inserted into the wire fixing member 32, which can initially position the connecting wire 33, making it convenient for the wave soldering equipment to automatically solder its pins to the circuit board 6 later.

[0040] 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 strong magnetic shielding structure for an electricity meter relay, the electricity meter comprising a housing (1) and a relay structure and a current terminal structure (3) disposed inside the housing (1), characterized in that: The relay structure includes several relays and a partition plate (2) with strong magnetic shielding function wrapped around the relays. The partition plate (2) is located inside the housing (1). The partition plate (2) includes a base plate (21) and several shielding plates (22) extending away from the base plate (21) around the base plate (21). The shielding plates (22) and the base plate (21) form a wrapping space for wrapping the relays.

2. The strong magnetic shielding structure for an energy meter relay according to claim 1, characterized in that: The shielding plate (22) includes a first antimagnetic plate (23) and a second antimagnetic plate (24) respectively disposed on the left and right sides of the base plate (21) and a third antimagnetic plate (25) disposed on one end of the reverse current terminal.

3. The strong magnetic shielding structure for an energy meter relay according to claim 2, characterized in that: The first antimagnetic plate (23), the second antimagnetic plate (24) and the third antimagnetic plate are all set perpendicular to the base plate (21).

4. The strong magnetic shielding structure for an energy meter relay according to claim 3, characterized in that: The shielding plate (22) includes a first antimagnetic plate (23) and a second antimagnetic plate (24) respectively disposed on the left and right sides of the base plate (21) and a third antimagnetic plate (25) disposed on one end of the reverse current terminal structure (3).

5. The strong magnetic shielding structure for an energy meter relay according to claim 4, characterized in that: A first positioning device (4) is provided between the base plate (21) and the shell (1), and a second positioning device (5) is provided between the first antimagnetic plate (23) and / or the second antimagnetic plate (24) and the shell (1). The first positioning device (4) includes a positioning post (41) provided on one side of the shell (1) or the base plate (21) and a positioning groove (42) provided on the other side and adapted to the positioning post (41).

6. The strong magnetic shielding structure of an energy meter relay according to claim 5, characterized in that: The second positioning device (5) includes a snap-fit ​​post (51) disposed on one of the housing (1) or the first antimagnetic plate (23) and / or the second antimagnetic plate (24) and a snap-fit ​​groove (52) disposed on the other and adapted to the snap-fit ​​post (51).

7. A strong magnetic shielding structure for an energy meter relay according to any one of claims 1-6, characterized in that: The electricity meter is also equipped with a circuit board (6), and a wire connection structure (7) is provided between the current terminal structure (3) and the circuit board (6). The current terminal structure (3) includes a current terminal shell (31) and a wire fixing member (32) provided on the current terminal shell (31). The wire connection structure (7) includes a connecting wire (33) and a plug pin (34) provided at the end of the wire and snapped into the wire fixing member (32). There is a clearance space between the current terminal structure (3) and the partition plate (2) to avoid the relay.

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