CN-224231855-U - Slave machine and intelligent ammeter system

CN224231855UCN 224231855 UCN224231855 UCN 224231855UCN-224231855-U

Abstract

The application provides a slave machine and an intelligent ammeter system, and belongs to the technical field of electrical equipment. The slave provided by the application comprises a shell and a circuit board. The inside chamber that holds that is equipped with of casing, hold the chamber and include diapire and roof, diapire and roof are corresponding. The circuit board sets up in holding the intracavity, and the circuit board includes mainboard and measurement board, and mainboard and diapire parallel arrangement mutually, measurement board set up between mainboard and diapire, and one side of measurement board contacts with the diapire, perhaps measurement board sets up between mainboard and roof, and one side of measurement board contacts with the roof. The main board is connected with one side of the metering board far away from the bottom wall, and a non-zero included angle exists between the main board and the metering board. The application can reduce the area of the alternating magnetic field passing through the metering plate, so that the generated induced electromotive force can be reduced, thus the error of the power consumption data collected by the slave machine can be reduced, the use reliability of the slave machine can be improved, and the use reliability of the intelligent ammeter system can be improved.

Inventors

Xue Keqian
ZHANG WEIBIN
WANG PINJIE
WANG ZHANGZHEN
ZHOU ENZE
WANG YONGMING
NAN XU

Assignees

德力西集团仪器仪表有限公司

Dates

Publication Date: 20260512
Application Date: 20250527

Claims (10)

1. A slave machine, which comprises a master machine, characterized by comprising the following steps: The shell is internally provided with a containing cavity, the containing cavity comprises a bottom wall and a top wall, and the bottom wall corresponds to the top wall; The circuit board is arranged in the accommodating cavity and comprises a main board and a metering board, the main board and the bottom wall are arranged in parallel, and the metering board is arranged between the main board and the bottom wall or between the main board and the top wall; the main board and one side of the metering board far away from the bottom wall or the top wall are connected with each other, and a non-zero included angle exists between the main board and the metering board.
2. The slave machine of claim 1, wherein the angle between the master plate and the metering plate is 90 °.
3. The slave machine according to claim 1, wherein the master board and the metering board are connected by surface mounting.
4. The slave machine according to claim 1, wherein the master plate and the metering plate are connected by means of through hole welding.
5. The slave machine according to claim 3 or 4, wherein a first positioning portion is provided on a side of the main board close to the metering board; A second positioning part is arranged on one side of the metering plate, which is close to the main plate; the first positioning part corresponds to the second positioning part in position.
6. The slave machine of claim 5, wherein the first positioning portion and the second positioning portion are pads.
7. The slave machine of claim 1, further comprising a relay disposed within the receiving cavity and fixedly connected to the housing.
8. The slave machine according to claim 7, wherein the relay is disposed between the main board and the bottom wall, and a positioning pin is disposed on a side of the relay facing the main board; The relay is welded to the main board through the positioning pin.
9. A smart meter system comprising a master and a slave as claimed in any one of claims 1 to 8; The host computer is connected with the slave computer through a connector.
10. The smart meter system of claim 9, wherein the plurality of slaves is connected to the master via connectors.

Description

Slave machine and intelligent ammeter system Technical Field The application relates to the technical field of electrical equipment, in particular to a slave machine and an intelligent ammeter system. Background The intelligent ammeter is one of basic equipment for intelligent power grid data acquisition, bears the tasks of original electric energy data acquisition, metering and transmission, and is a foundation for realizing information integration, analysis optimization and information display. The smart meter generally includes a host and a slave, and the host and the slave cooperate to form a smart meter system. The host can actively initiate communication, control and manage the slave, collect power consumption data such as voltage, current or electric quantity and execute control instructions issued by the host. In the prior art, the voltage and current sampling signals of the slave machine are distorted due to the influence of current, so that the power consumption data error collected by the slave machine is larger, and the use reliability of the intelligent ammeter system is reduced. Disclosure of utility model The application provides a slave machine and a smart meter system, which are used for improving the use reliability of the smart meter system. In a first aspect, the present application provides a slave, which includes a housing and a circuit board. The inside chamber that holds that is equipped with of casing, hold the chamber and include diapire and roof, diapire and roof are corresponding. The circuit board sets up in holding the intracavity, and the circuit board includes mainboard and measurement board, and mainboard and diapire looks parallel arrangement, measurement board set up between mainboard and diapire, perhaps measurement board sets up between mainboard and roof. The main board and one side of the metering board far away from the bottom wall or the top wall are connected with each other, and a non-zero included angle exists between the main board and the metering board. Through the scheme, the alternating magnetic field can generate induced electromotive force when passing through the measuring plate, and the voltage or current sampling signal is distorted due to the fact that the measuring accuracy of the measuring plate is sensitive, so that the power consumption data error collected by the slave machine is larger. The alternating magnetic field direction is perpendicular to the main board, and when a non-zero included angle exists between the measuring board and the main board, the area of the alternating magnetic field penetrating through the measuring board can be reduced. When the area of the alternating magnetic field passing through the measuring plate is reduced, the generated induced electromotive force is reduced, so that the error of the power consumption data collected by the slave machine can be reduced, and the use reliability of the slave machine can be improved. Since the slave is connected with the host to form the intelligent ammeter system, when the use reliability of the slave is improved, the use reliability of the intelligent ammeter system is also improved. In one possible design, the angle between the main plate and the metering plate is 90 °. Through the scheme, when the included angle between the main board and the metering board is 90 degrees, the alternating magnetic field direction in the slave machine is parallel to the setting direction of the metering board, so that the area of the alternating magnetic field passing through the metering board is minimum, and the alternating magnetic field can only pass through the metering board along the length direction or the width direction of the metering board. When the area of the alternating magnetic field passing through the metering plate is minimum, the induced electromotive force generated when the alternating magnetic field passes through the metering plate is minimum, so that the error of the metering plate in measuring electricity consumption data can be reduced, and the use reliability of the intelligent ammeter system can be improved. In one possible design, the connection between the motherboard and the metering board is by way of surface mount. Through the scheme, the connection rate of the main board and the metering board can be improved, the connection stability between the main board and the metering board can be improved, the probability of occurrence of separation problems between the main board and the metering board when the slave machine shakes or collides can be reduced, and the use reliability of the circuit board is improved, so that the use reliability of the intelligent ammeter system can be improved. Compared with the prior art, the surface mounting mode can also enable the main board to be directly connected with the metering board, so that the use of pins and leads is omitted, the impedance between the main board and the metering board can be reduced, parasitic inductance and