Intelligent module for drawer of low-voltage cabinet

Abstract

The utility model discloses a low-voltage cabinet drawer intelligent module, which comprises three single-phase mutual inductors, and is characterized by also comprising a shell and an integrated module, the shell is provided with an inner cavity, the integrated module and the three single-phase mutual inductors are arranged in the inner cavity of the shell, the three single-phase mutual inductors are arranged side by side, and the integrated module is connected with the three single-phase mutual inductors. The axes of the three single-phase mutual inductor through holes all face the side wall of the shell, and the side walls of the two sides of the shell are each provided with three penetrating holes corresponding to the single-phase mutual inductor through holes. And the terminals of the three single-phase transformers are electrically connected with the integrated module respectively. According to the low-voltage cabinet drawer intelligent module, the three single-phase mutual inductors can be integrated together, a plurality of connecting wires are not needed during installation, the installation efficiency is high, and the space occupancy rate in a cabinet is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the field of low-voltage cabinet equipment, in particular to a low-voltage cabinet drawer intelligent module. Background Art

[0002] At present, most of the low-voltage drawer cabinet feeder terminal monitoring on the market uses three single-phase mutual inductors plus multi-function meters to collect power parameters. The installation of three single-phase mutual inductors requires complex secondary wiring. In addition, the copper busbars need to avoid each other during design and installation to provide sufficient installation space for phase-to-phase mutual inductors, which wastes copper materials, is troublesome to install, and is inefficient. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a low-voltage cabinet drawer intelligent module, which can integrate three single-phase mutual sensors together, does not need to use multiple connecting wires during installation, has high installation efficiency, and effectively reduces the space occupancy rate in the cabinet.

[0004] In order to solve the above technical problems, the technical solutions adopted are as follows:

[0005] A low-voltage cabinet drawer intelligent module includes three single-phase mutual inductors, and is characterized in that it also includes a shell and an integrated module, the shell is provided with an inner cavity, the integrated module and the three single-phase mutual inductors are all installed in the inner cavity of the shell, the three single-phase mutual inductors are arranged side by side, and the axes of the three single-phase mutual inductor through holes are all facing the side wall of the shell, and three through holes corresponding to the single-phase mutual inductor through holes are provided on the side walls of both sides of the shell; the wiring terminals of the three single-phase mutual inductors are respectively electrically connected to the integrated modules.

[0006] When installing and wiring the above-mentioned low-voltage cabinet drawer intelligent module, for the wiring of the three single-phase mutual inductors, it is only necessary to pass the corresponding copper bus wires through the perforations of the side wall of one side of the shell, the through holes of the single-phase mutual inductors and the perforations of the side wall of the other side of the shell in turn, and then connect them to the external signal acquisition device (such as a display panel, etc.) through a sampling connection line, so that the installation of the three single-phase mutual inductors can be realized. This low-voltage cabinet drawer intelligent module integrates the lines of the three single-phase mutual inductors through an integrated module, so when wiring, only one sampling connection line is needed to replace the original complicated sampling secondary connection line, thereby reducing the copper busbar overlap surface and improving installation efficiency; at the same time, the three single-phase mutual inductors can be integrated together, effectively reducing the space occupied by the single-phase mutual inductors in the low-voltage cabinet drawer.

[0007] In the preferred embodiment, the integrated module includes a PCB circuit board, a metering chip and a control module. The metering chip and the control module are respectively arranged on the PCB circuit board. The PCB circuit board is provided with three acquisition interfaces and a connection interface. The three acquisition interfaces correspond to the three single-phase mutual inductors one by one. The wiring terminals of the single-phase mutual inductors are electrically connected to the corresponding acquisition interfaces. The signal output terminals of each acquisition interface are electrically connected to the signal input terminals of the metering chip. The signal output terminals of the metering chip are electrically connected to the signal input terminals of the control module. The signal output terminals of the control module are electrically connected to the signal input terminals of the connection interfaces. Through this arrangement, the current and voltage data of the three phases can be collected through the metering chip, the data is processed by the control module, and finally sent to the external signal acquisition device. Usually, the control module is composed of a micro control unit and a communication module (a wired network communication module, such as a 485 communication module, a wireless communication module, or a wired network communication module and a wireless communication module).

[0008] In the preferred embodiment, the integrated module is installed on the top of the inner cavity of the shell, and the top of the shell is provided with a wiring hole for the wiring terminal of the integrated module to extend out; the three single-phase mutual inductors are arranged side by side from left to right, and the wiring terminals of the three single-phase mutual inductors are all facing upwards and are electrically connected to the integrated module respectively.

[0009] In a further preferred embodiment, mounting seats extending outward are respectively provided on both sides of the lower end of the housing, and mounting holes are provided on the mounting seats. With this arrangement, the low-voltage cabinet drawer intelligent module can be installed on the wall of the low-voltage cabinet drawer by passing bolts through the mounting holes, and the wiring terminals of the integrated module are facing the inside of the cabinet.

[0010] The beneficial effect of the utility model is that the low-voltage cabinet drawer intelligent module can integrate three single-phase mutual sensors together, and does not need to use multiple connecting wires during installation, has high installation efficiency, and effectively reduces the space occupancy rate in the cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a structural schematic diagram of the low-voltage cabinet drawer intelligent module in the embodiment of the utility model;

[0012] Figure 2 It is a cross-sectional view of the low-voltage cabinet drawer intelligent module in the embodiment of the utility model;

[0013] Figure 3 A cross-sectional view of the low-voltage cabinet drawer intelligent module from another angle in the embodiment of the utility model;

[0014] Figure 4 This is a structural diagram of the installation of the low-voltage cabinet drawer intelligent module in the embodiment of the utility model;

[0015] Figure 5This is a schematic diagram of the structure of the existing transformer during installation. DETAILED DESCRIPTION

[0016] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments:

[0017] like Figure 1-3 The low-voltage cabinet drawer intelligent module shown includes a shell 1, an integrated module 2 and three single-phase mutual inductors 3. The shell 1 is provided with an inner cavity. The integrated module 2 and the three single-phase mutual inductors 3 are all installed in the inner cavity of the shell 1. The three single-phase mutual inductors 3 are arranged in sequence from left to right, and the axes of the through holes 301 of the three single-phase mutual inductors 3 are all facing the side wall of the shell 1. Three through holes 101 corresponding to the through holes 301 of the single-phase mutual inductors 3 are provided on the side walls of both sides of the shell 1; the wiring terminals of the three single-phase mutual inductors 3 are respectively electrically connected to the integrated module 2.

[0018] like Figure 4 As shown, when the above-mentioned low-voltage cabinet drawer intelligent module is installed and wired, for the wiring of the three single-phase mutual inductors 3, it is only necessary to sequentially pass the corresponding copper busbar 4 through the through hole 101 on one side wall of the housing 1, the through hole 301 of the single-phase mutual inductor 3 and the through hole 101 on the other side wall of the housing 1, and then pass it out, and then connect it to an external signal acquisition device (such as a display panel, etc.) through a sampling connection line, so that the installation of the three single-phase mutual inductors 3 can be realized. This low-voltage cabinet drawer intelligent module integrates the lines of the three single-phase mutual inductors 3 through the integrated module 2, so when wiring, only one sampling connection line is needed to replace the original complicated sampling secondary connection line (the existing installation status is as shown in FIG. Figure 5 As shown, each single mutual inductor 3' is installed in the low-voltage cabinet drawer respectively, and the copper busbar 4' is arranged in a complex manner), thereby reducing the copper busbar overlap surface and improving the installation efficiency; at the same time, the three single mutual inductors 3 can be integrated together, effectively reducing the space occupied by the single mutual inductors 3 in the low-voltage cabinet drawer.

[0019] The integrated module 2 includes a PCB circuit board, a metering chip and a control module. The metering chip and the control module are respectively arranged on the PCB circuit board. The PCB circuit board is provided with three acquisition interfaces and a connection interface. The three acquisition interfaces correspond to three single-phase mutual inductors 3 one by one. The wiring terminals of the single-phase mutual inductors 3 are electrically connected to the corresponding acquisition interfaces. The signal output end of each acquisition interface is electrically connected to the signal input end of the metering chip. The signal output end of the metering chip is electrically connected to the signal input end of the control module. The signal output end of the control module is electrically connected to the signal input end of the connection interface. Through this arrangement, the current and voltage data of the three phases can be collected by the metering chip, the control module processes the data, and finally sends it to the external signal acquisition device. The control module is composed of a micro control unit and a communication module.

[0020] The integrated module 2 is installed at the top of the inner cavity of the shell 1, and the top of the shell 1 is provided with a wiring hole for the wiring terminal 201 of the integrated module 2 to extend; the three single-phase mutual inductors 3 are arranged side by side from left to right, and the wiring terminals of the three single-phase mutual inductors 3 are all facing upwards and are electrically connected to the integrated module 2 respectively.

[0021] The lower end of the housing 1 is provided with mounting seats 102 extending outwards on both sides, and the mounting seats 102 are provided with mounting holes 1021. With this arrangement, the low-voltage cabinet drawer intelligent module can be mounted on the wall of the low-voltage cabinet drawer by passing bolts through the mounting holes 1021, and the wiring terminal 201 of the integrated module 2 faces the inside of the cabinet.

Claims

1. Low voltage cabinet drawer intelligent module, including three single-phase sensors, characterized by: It also includes a shell and an integrated module. The shell is provided with an inner cavity. The integrated module and the three single-phase mutual inductors are installed in the inner cavity of the shell. The three single-phase mutual inductors are arranged side by side, and the axes of the three single-phase mutual inductor through holes are all facing the side wall of the shell. Three through holes corresponding to the single-phase mutual inductor through holes are provided on the side walls of both sides of the shell; the wiring terminals of the three single-phase mutual inductors are respectively electrically connected to the integrated module.

2. The low-voltage cabinet drawer intelligent module according to claim 1, characterized in that: The integrated module includes a PCB circuit board, a metering chip and a control module. The metering chip and the control module are respectively arranged on the PCB circuit board. The PCB circuit board is provided with three acquisition interfaces and a connection interface. The three acquisition interfaces correspond to the three single-phase mutual inductors respectively. The wiring terminals of the single-phase mutual inductors are electrically connected to the corresponding acquisition interfaces. The signal output ends of the acquisition interfaces are electrically connected to the signal input ends of the metering chip. The signal output ends of the metering chip are electrically connected to the signal input ends of the control module. The signal output ends of the control module are electrically connected to the signal input ends of the connection interfaces.

3. The low voltage cabinet drawer intelligent module according to claim 1, characterized in that: The integrated module is installed on the top of the inner cavity of the shell, and the top of the shell is provided with a wiring hole for the wiring terminal of the integrated module to extend; the three single-phase mutual inductors are arranged side by side from left to right, and the wiring terminals of the three single-phase mutual inductors are all facing upwards and are electrically connected to the integrated module respectively.

4. The low voltage cabinet drawer intelligent module according to claim 3, characterized in that: Both sides of the lower end of the shell are respectively provided with mounting seats extending outwards, and mounting holes are opened on the mounting seats.

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