CN-121995094-A - Unidirectional intelligent electric energy meter

CN121995094ACN 121995094 ACN121995094 ACN 121995094ACN-121995094-A

Abstract

The invention relates to a unidirectional intelligent electric energy meter, which comprises an electronic lead seal arranged between an end button box and an end cover, wherein the end cover is rotationally connected to the end button box through a rotating shaft, an inductor for monitoring the rotating angle of the rotating shaft is arranged in the end button box, whether the intelligent electric energy meter has electricity stealing behavior or not is judged through the electronic lead seal and the inductor, if the electronic lead seal is in an open state and the rotating angle of the rotating shaft monitored by the inductor exceeds a preset value, abnormal alarm information is sent to a monitoring center, and meanwhile, a shielding assembly is controlled to be unfolded to wrap the working surface of the end button box. When the occurrence of electricity stealing behavior is detected, the shielding component is controlled to be unfolded to wrap the end button box working face inside, so that the subsequent electricity stealing behavior is blocked. Meanwhile, the shielding component can be detached from the terminal box, so that the unused shielding component can be replaced conveniently.

Inventors

LUO SHUNHUI
YANG JIAMING
HE SHURUI
XU YOUZHI
LIU YONGQIANG
Tan Afeng
CHEN QINGLEI
CHEN XIAOSHAN
JIN ZILI
LIN ZHIWEN
WANG WEIDONG

Assignees

福建网能科技开发有限责任公司

Dates

Publication Date: 20260508
Application Date: 20260120

Claims (10)

1. The utility model provides a one-way intelligent ammeter, includes end button box (1), end cover (2) and sets up the electron lead seal between end button box (1) and end cover (2), end cover (2) are through pivot (3) swivelling joint at end button box (1), end button box (1) embeds has the inductor that is used for monitoring pivot (3) rotation angle, its characterized in that: Judging whether the intelligent electric energy meter has electricity stealing behaviors through the electronic lead seal and the inductor, if the electronic lead seal is in an open state and the rotation angle of the rotating shaft (3) monitored by the inductor exceeds a preset value, sending abnormal alarm information to a monitoring center, and simultaneously controlling the shielding assembly to be unfolded to wrap the working face of the terminal box (1).
2. A unidirectional intelligent electric energy meter according to claim 1, characterized in that the shielding assembly comprises a shell (4), an air bag (6) which is arranged in the shell (4) and is in a folded state, and a gas generator (7) with a gas outlet communicated with the inner cavity of the air bag (6), wherein an igniter (71) is arranged in the gas generator (7).
3. The unidirectional intelligent electric energy meter according to claim 2, wherein a sliding groove (51) is formed in the working surface of the end button box (1), a sliding seat (5) is connected to the sliding groove (51) in a sliding mode, and one side of the air bag (6) is connected with the sliding seat (5).
4. A unidirectional intelligent electric energy meter according to claim 3, characterized in that at least a first cavity (61) and a second cavity (62) which are in one-to-one correspondence are arranged in the air bag (6), an adhesive a and an adhesive B are respectively arranged in the first cavity (61) and the second cavity (62), a prefabricated tearing strip (63) is arranged between the first cavity (61) and the second cavity (62), and one end, far away from the sliding seat (5), of the prefabricated tearing strip (63) is connected with the sliding seat (5).
5. A unidirectional intelligent electric energy meter as claimed in claim 4, characterized in that the open side of the housing (4) is provided with a protective film (41), and the prefabricated tear strip (63) is connected with the slide (5) after penetrating the protective film (41) by a pull rope (64).
6. A unidirectional smart power meter as claimed in claim 4, characterized in that the opening formed by the tearing of the prefabricated tear strip (63) between the first and second chambers (61, 62) is arranged opposite to the direction of fluid flow in the air-bag (6).
7. A unidirectional intelligent electric energy meter according to claim 3, characterized in that a unidirectional buckle (42) is arranged on one side of the shell (4), the shell (4) is in clamping fit with the working surface of the terminal box (1) through the unidirectional buckle (42), and only the telescopic electromagnet for locking the unidirectional buckle (42) is arranged in the terminal box (1).
8. A unidirectional intelligent electric energy meter as claimed in claim 7, characterized in that the working surface of the terminal box (1) is provided with a wiring port which is in plug-in fit with a wiring terminal (72) of the igniter (71).
9. A unidirectional intelligent electric energy meter as claimed in claim 7, characterized in that the slide (5) slides unidirectionally in the chute (51).
10. The unidirectional intelligent electric energy meter according to claim 9, wherein the sliding seat (5) is provided with a rack part (52), the sliding groove (51) is rotationally connected with a revolving body (53), one side of the revolving body (53) is inwards concave to form a plane groove (531), the other side of the revolving body is provided with unidirectional teeth (533), the shell (4) is provided with a toothed bar (43), the end part of the revolving body (53) is provided with a gear (533) meshed with the toothed bar (43), when the shell (4) is clamped with a working surface of the terminal box (1), the meshing of the toothed bar (43) and the gear (533) drives the revolving body (53) to enable the unidirectional teeth (533) of the revolving body (53) to mesh with the rack part (52), and the revolving body (53) keeps the normal plane groove (531) to face the rack part (52) through a reset spring.

Description

Unidirectional intelligent electric energy meter Technical Field The invention relates to the technical field of electric energy meters, in particular to a unidirectional intelligent electric energy meter. Background The unidirectional electric energy meter is commonly called as a single-phase electric energy meter, is a metering device special for measuring unidirectional electric energy flow, and is widely applied to foundation electric field scenes such as domestic electricity and the like. Currently, a common electric energy meter structure generally comprises two main parts, namely a terminal box and an end cover, which are connected and then subjected to lead sealing to realize preliminary tamper protection. However, the traditional electricity larceny prevention mode has obvious limitations that on one hand, whether electricity larceny is generated is judged only by a lead seal, the checking process is complicated, the daily inspection of operation and maintenance personnel is burdened, and on the other hand, the lead seal is easy to forge or replace and is not easy to identify by naked eyes, so that the electricity larceny is more concealed and is difficult to discover and process in time. Therefore, the prior electric energy meter has the defects of overall performance in electricity larceny prevention and limited protection capability in the face of intentional tampering or technical electricity larceny, and also brings practical operation and maintenance problems for electricity charge recovery and metering management of power supply enterprises. Disclosure of Invention Aiming at the defects of the prior art, the invention provides a unidirectional intelligent electric energy meter to solve the problems. The invention provides the following technical scheme: The one-way intelligent electric energy meter comprises an end button box, an end cover and an electronic lead seal arranged between the end button box and the end cover, wherein the end cover is rotationally connected to the end button box through a rotating shaft, and an inductor for monitoring the rotating angle of the rotating shaft is arranged in the end button box; Judging whether the intelligent electric energy meter has electricity stealing behaviors through the electronic lead seal and the inductor, if the electronic lead seal is in an open state and the rotation angle of the rotating shaft monitored by the inductor exceeds a preset value, sending abnormal alarm information to a monitoring center, and simultaneously controlling the shielding assembly to be unfolded to wrap the end button box working face inside. Preferably, the shielding assembly comprises a shell, an air bag which is arranged in the shell and is in a folded state, and a gas generator, wherein the gas outlet of the gas generator is communicated with the inner cavity of the air bag, and an igniter is arranged in the gas generator. Preferably, a sliding groove is formed in the working face of the end button box, a sliding seat is connected to the sliding groove in a sliding mode, and one side of the air bag is connected with the sliding seat. Preferably, at least a first cavity and a second cavity which are matched in a one-to-one correspondence manner are arranged in the air bag, an A adhesive and a B adhesive are respectively arranged in the first cavity and the second cavity, a prefabricated tearing strip is arranged between the first cavity and the second cavity, and one end, far away from the sliding seat, of the prefabricated tearing strip is connected with the sliding seat. Preferably, the opening side of the shell is provided with a protective film, and the prefabricated tearing strip penetrates through the protective film through a pull rope and then is connected with the sliding seat. Preferably, the opening formed by tearing the pre-formed tear strip between the first and second chambers is arranged opposite to the direction of fluid flow in the air-bag. Preferably, one side of the shell is provided with a one-way buckle, the shell is matched with the working face of the end button box in a clamping way through the one-way buckle, and only the telescopic electromagnet for locking the one-way buckle is arranged in the end button box. Preferably, the working face of the terminal box is provided with a wiring port which is in plug-in fit with a wiring terminal of the igniter. Preferably, the sliding seat slides in a sliding groove in a unidirectional manner. The sliding seat is preferably provided with a rack part, the sliding groove is rotatably connected with a revolving body, one side of the revolving body is inwards concave to form a plane groove, the other side of the revolving body is provided with one-way teeth, the shell is provided with a toothed bar, the end part of the revolving body is provided with a gear meshed with the toothed bar, when the shell is clamped with the working surface of the end button box, the meshing of the toothed bar and the gea