CN216356101U

CN216356101U - Multifunctional power transmission terminal

Info

Publication number: CN216356101U
Application number: CN202122575338.8U
Authority: CN
Inventors: 苏华衍; 苏小衍
Original assignee: Xiamen Shangke Information Technology Co ltd
Current assignee: Xiamen Shangke Information Technology Co ltd
Priority date: 2021-10-26
Filing date: 2021-10-26
Publication date: 2022-04-19
Anticipated expiration: 2031-10-26

Abstract

The utility model aims to provide a multifunctional power transmission terminal which is simple in structure, complete in function and convenient and fast to install. The intelligent relay comprises a shell (1), wherein an installation guide rail (2) is arranged on an installation surface of the shell, a switching value input terminal (3) used for inputting an analog switching value is further arranged on the surface of the shell, a 4-20mA analog value output terminal (4) used for outputting a 4-20mA direct current analog signal, at least one relay output terminal (5) used for realizing relay output, a wired network port (6) used for wired network connection and a wireless network port (7) used for realizing wireless network connection, an MCU (8) is arranged in the shell, and the switching value input terminal (3), the 4-20mA analog value output terminal (4), the relay output terminal (5), the wired network port (6) and the wireless network port (7) are all in electric signal connection with the MCU (8). The utility model can be applied to the field of electric energy equipment.

Description

Multifunctional power transmission terminal

Technical Field

The utility model relates to electric energy equipment, in particular to a multifunctional power transmission terminal.

Background

With the development of science and technology, the power quality requirement of the power supply end by the power utilization end is higher and higher. The power supply department needs to adopt various effective technical means to ensure the reliable stability, safety and the like of power supply. For this reason, the electric power sector invests considerable costs and efforts to ensure that the electric parameters of the grid comply with the new power supply requirements. For this purpose, it is necessary to detect and regulate individual electrical variables of the electrical network. At present, one or two electric parameters are generally adopted and one device is adopted for detection and adjustment, so that a plurality of devices are required for detection and installation, the devices are complex in structure and high in installation difficulty, and especially under the condition of adding on the basis of the existing devices, the installation difficulty is higher. If the power transmission terminal which integrates multiple functions and is simple in structure and convenient to install can be designed, the problems can be well solved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provides the multifunctional power transmission terminal which is simple in structure, complete in function and convenient and fast to install.

The technical scheme adopted by the utility model is as follows: the utility model comprises a shell, wherein a mounting guide rail is arranged on a mounting surface of the shell, a switching value input terminal for simulating switching value input, a 4-20mA analog value output terminal for outputting a 4-20mA direct current analog signal, at least one relay output terminal for realizing relay output, a wired network port for wired network connection and a wireless network port for realizing wireless network connection are also arranged on the surface of the shell, an MCU is arranged in the shell, and the switching value input terminal, the 4-20mA analog value output terminal, the relay output terminal, the wired network port and the wireless network port are all in electric signal connection with the MCU.

The MCU is a PLC controller.

And the wired network port is an RS485 interface.

The wireless network port is a USB interface.

The shell is also provided with a power input interface, and the power input interface adopts a three-phase three-wire or three-phase four-wire mode.

The utility model has the beneficial effects that: according to the utility model, the installation guide rail is arranged on the installation surface of the shell, so that the shell can be quickly and conveniently installed on the existing equipment to work; in addition, a switching value input terminal, a 4-20mA analog quantity output terminal, a relay output terminal, a wired network port, a wireless network port and the like are arranged on the surface of the shell, the switching value input terminal can realize the input of the switching analog quantity through the control of the MCU, the 4-20mA analog quantity output terminal can realize the output of the 4-20mA analog quantity, the relay output terminal can realize the output of the signal of the relay, the wired network port can realize the remote connection and control of the terminal, the adjustment, the correction and other operations of the terminal parameters by a user are facilitated, and the wireless network port can upload data to a local background through a LoRa wireless networking; the utility model realizes the integration of multiple functions, and can transmit electric parameters such as current, voltage, frequency, power factor and the like in a power grid into linear direct current analog signals or digital signals for output through isolation and transformation, thereby ensuring the stability, reliability and safety of the electric parameters of the power grid.

Drawings

FIG. 1 is a simplified structural diagram of a first perspective of the present invention;

FIG. 2 is a simplified structural diagram of a second perspective of the present invention;

FIG. 3 is a simplified structural diagram of a third perspective of the present invention;

fig. 4 is a schematic diagram of a simple structure of the MCU connection structure.

Detailed Description

As shown in fig. 1 to 4, the present invention includes a housing 1, a mounting rail 2 is disposed on a mounting surface of the housing 1, a switching value input terminal 3 for analog switching value input, a 4-20mA analog output terminal 4 for outputting a 4-20mA dc analog signal, at least one relay output terminal 5 for realizing relay output, a wired network port 6 for wired network connection, and a wireless network port 7 for realizing wireless network connection are further disposed on a surface of the housing 1, an MCU8 is disposed in the housing 1, and the switching value input terminal 3, the 4-20mA analog output terminal 4, the relay output terminal 5, the wired network port 6, and the wireless network port 7 are all electrically connected to the MCU 8.

Specifically, the MCU8 is a PLC controller. And the wired network port 6 is an RS485 interface. The wireless network port 7 is a USB interface.

The shell 1 is also provided with a power input interface, and the power input interface adopts a three-phase three-wire or three-phase four-wire mode. When the voltage is higher than 400V, the voltage is required to be accessed through a voltage transformer.

The utility model provides a serial asynchronous half-duplex RS485 communication interface, which adopts a standard MODBUS-RTU communication protocol, various data information can be transmitted on a communication line, up to 32 transmitters can be simultaneously connected on one line, a shielding twisted pair with a copper mesh is used for communication connection, and the wire diameter is not less than 0.75 square millimeter. When wiring, a communication line is far away from a strong electric cable or other strong electric field environments, and when networking, a bus type network connection mode is recommended, and star-shaped or other connection modes are not recommended.

Finally, it should be emphasized that the above-described preferred embodiments of the present invention are merely examples of implementations, rather than limitations, and that many variations and modifications of the utility model are possible to those skilled in the art, without departing from the spirit and scope of the utility model.

Claims

1. A multi-functional electric power transformer terminal which characterized in that: it comprises a shell (1), wherein the installation surface of the shell (1) is provided with an installation guide rail (2), the surface of the shell (1) is also provided with a switching value input terminal (3) for simulating switching value input, a 4-20mA analog value output terminal (4) for outputting a 4-20mA direct current analog signal, at least one relay output terminal (5) for realizing relay output, a wired network port (6) for wired network connection and a wireless network port (7) for realizing wireless network connection, an MCU (8) is arranged in the shell (1), and the switching value input terminal (3), the 4-20mA analog quantity output terminal (4), the relay output terminal (5), the wired network port (6) and the wireless network port (7) are all in electric signal connection with the MCU (8).

2. The multifunctional power transformer terminal of claim 1, wherein: the MCU (8) is a PLC controller.

3. The multifunctional power transformer terminal of claim 1, wherein: and the wired network port (6) is an RS485 interface.

4. The multifunctional power transformer terminal of claim 1, wherein: the wireless network port (7) is a USB interface.

5. The multifunctional power transformer terminal of claim 1, wherein: the shell (1) is also provided with a power input interface, and the power input interface adopts a three-phase three-wire or three-phase four-wire mode.