Multi-loop switching matrix module

Abstract

The utility model discloses a multi-loop switching matrix module, and the module comprises a housing which comprises a top surface, a bottom surface, a left side surface, a right side surface, a front side surface, and a rear side surface; the front side surface and the rear side surface are respectively provided with a plurality of signal input interfaces and a plurality of signal output interfaces. The signal input interface obtains a positioning current signal from the connected insulation detection and fault positioning device; a plurality of relay units; a plurality of terminals, wherein each terminal is correspondingly connected with one relay unit; the input end of each terminal is connected with one of the signal input interfaces; the output end of each terminal is connected with one of the signal output interfaces; and the power supply module is used for supplying power to one of the relay units according to an instruction, so that the terminal connected with the relay unit is communicated with one of the signal input interfaces and one of the signal output interfaces, and the positioning current signal is transmitted to a field circuit loop connected with the signal output interfaces through the terminal. The scale of existing power supply field insulation monitoring equipment can be reduced.

Description

Technical Field

[0001] This application relates to the technical field of offshore power grid safety, and particularly to a multi-loop switching matrix module. Background Art

[0002] Offshore oil production is a high-risk operation with high requirements for the stability of the power system. Most equipment on offshore platforms is powered by 400V voltage. Affected by the humid offshore environment, electrical equipment insulation failures occur frequently, greatly affecting the safe production of the platform. At the same time, the space on the offshore platform is tight, and the number of low-voltage circuits reaches hundreds. Existing on-site insulation monitoring systems require multiple locators to achieve the insulation monitoring required for multiple circuits. For example, in one prior art solution, one insulation monitor can monitor multiple (up to 50) insulation locators connected through an RS-485 interface (BS bus protocol); one locator is connected to a 12-channel current measurement transformer (i.e., one locator is connected to 12 circuits). Such a large number of hardware configuration requirements result in complex construction and installation, high system configuration costs, and difficulty in popularization and implementation. Summary of the Invention

[0003] In view of this, the technical problem to be solved by this application is to provide a multi-loop switching matrix module to solve the problems of the existing on-site insulation monitoring system, such as being overall complex, large, occupying more on-site space, and limited number of monitored circuits.

[0004] To solve the above problems, one aspect of this application provides a multi-loop switching matrix module, including: a housing, including a top surface, a bottom surface, a left side surface, a right side surface, a front side surface, and a rear side surface; a plurality of signal input interfaces and a plurality of signal output interfaces are respectively arranged on the front side surface and the rear side surface; the signal input interfaces obtain positioning current signals from the connected insulation detection and fault location devices; the housing further includes: a number of relay units; a number of terminals, the number of terminals corresponding to the number of relay units, and each terminal is correspondingly connected to one relay unit; each terminal includes an input end and an output end, the input end of each terminal is connected to one of the signal input interfaces; the output end of each terminal is connected to one of the signal output interfaces; and a power module, configured to supply power to one of the number of relay units according to an instruction, so that the terminal connected to the relay unit connects one of the signal input interfaces and one of the signal output interfaces, and the positioning current signal is transmitted to the on-site circuit loop connected to the signal output interface through the terminal.

[0005] The multi-loop switching matrix module of this application, in cooperation with an integrally encapsulated insulation monitoring and positioning device, enables one insulation monitoring and positioning device and one multi-loop switching matrix module to achieve the insulation monitoring of 144 on-site circuits. In the case of achieving the same monitoring range as the prior art, the equipment scale is greatly reduced, the equipment cost is reduced, and the requirement for on-site space is reduced. Brief Description of the Drawings

[0006] Figure 1A The figure shows a perspective three-dimensional schematic diagram of a multi-loop switching matrix module according to an embodiment of the present application;

[0007] Figure 1B is Figure 1A a perspective three-dimensional schematic diagram of the multi-loop switching matrix module of the illustrated embodiment from another perspective;

[0008] Figure 2 is an internal structure schematic diagram of a multi-loop switching matrix module according to an embodiment of the present application;

[0009] Figure 3 is an internal structure schematic diagram of a multi-loop switching matrix module according to another embodiment of the present application. Detailed Description of the Embodiments

[0010] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application clearer and more understandable, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0011] In the present application, terms related to directions, such as up, down, top, bottom, inside, outside, high, and low, are based on the position of the multi-loop switching matrix module in the normal use state as the reference position.

[0012] A multi-loop switching matrix module includes: a housing, including a top surface, a bottom surface, a left side surface, a right side surface, a front side surface, and a rear side surface; a plurality of signal input interfaces and a plurality of signal output interfaces are respectively arranged on the front side surface and the rear side surface; the signal input interfaces obtain positioning current signals from the connected insulation detection and fault location device; the housing further includes: a plurality of relay units; a plurality of terminals, the number of terminals corresponding to the number of relay units, and each terminal is correspondingly connected to one relay unit; each terminal includes an input end and an output end, and the input end of each terminal is connected to one of the signal input interfaces; the output end of each terminal is connected to one of the signal output interfaces; and a power supply module, configured to supply power to one of the plurality of relay units according to an instruction, so that the terminal connected to the relay unit connects one of the signal input interfaces and one of the signal output interfaces, and the positioning current signal is transmitted to the field circuit loop connected to the signal output interface through the terminal.

[0013] In at least one embodiment, the multi-loop switching matrix module further includes a fixed base for fixing the plurality of relay units and the plurality of terminals inside the housing.

[0014] In at least one embodiment, the fixed base of the multi-loop switching matrix module is a long strip-shaped fixed shaft, which is fixed on the inner wall of the bottom surface, and the relay unit and the terminals are clamped side by side on the fixed shaft.

[0015] In at least one embodiment, the relay unit of the multi-loop switching matrix module includes 24.

[0016] In at least one embodiment, the relay unit of the multi-loop switching matrix module includes 36.

[0017] In at least one embodiment, heat dissipation holes are provided on the left side surface and the right side surface of the multi-loop switching matrix module.

[0018] In at least one embodiment, the top surface of the multi-loop switching matrix module includes a raised surface.

[0019] The following will describe in detail the specific implementation manners of the embodiments of the present application with reference to the accompanying drawings.

[0020] As Figure 1A and 1B shown in the multi-loop switching matrix module, it includes a housing, and the housing includes a top surface 1, a bottom surface 2, a left side surface 5, a right side surface symmetric to the left side surface 5, a front side surface 3, and a rear side surface 4; wherein, heat dissipation holes are provided on the left side surface 5 and the right side surface, the top surface 1 includes a raised surface 11, and a fixing structure can also be provided on the outer side of the bottom surface to facilitate the fixed installation of the multi-loop switching matrix module. A plurality of signal input interfaces and a plurality of signal output interfaces are provided on the front side surface 3 and the rear side surface 4, such as the signal input interface 7 and the signal output interface 8 shown in the figure. Optionally, the signal input interface 7 and the signal output interface 8 can be provided on any side according to needs; in addition to the signal input interface 7 and the signal output interface 8, a power supply line interface and other electrical signal interfaces can also be provided. The signal input interface 7 obtains a positioning current signal from the connected insulation detection and fault location device to test whether there is an insulation fault in the connected field loop.

[0021] As Figure 2The figure shows a schematic diagram of the internal structure of a multi-loop switching matrix module. A number of relay units 22 are arranged inside the housing. Exemplarily, 24 relay units 22 are included in the figure. Terminals 23 corresponding to the number of relay units are also arranged inside the housing. Each terminal 23 is correspondingly connected to one relay unit 22. Each terminal 23 includes an input end and an output end. The input end of each terminal 23 is connected to one of the signal input interfaces 7. The output end of each terminal 23 is connected to one of the signal output interfaces 8. A power supply module 21 is also arranged inside the housing. It supplies power to one of the number of relay units according to an instruction, so that the terminal connected to the relay unit connects one of the signal input interfaces and one of the signal output interfaces, and the positioning current signal is transmitted to the on-site circuit loop connected to the signal output interface 8 through the terminal 23.

[0022] A fixed base is also arranged inside the housing, which is used to fix the relay unit, the terminal and the power supply module on the inner side of the housing. For example, as shown in Figure 2 in the figure, the fixed base is fixed on the inner side of the bottom surface 2. In one implementation, the fixed base is a long strip-shaped fixed shaft, and the relay unit and the terminal are clamped side by side on the fixed shaft.

[0023] As Figure 3 The figure shows a schematic diagram of the internal structure of another multi-loop switching matrix module, and the difference from the Figure 2 embodiment shown is that: the number of relay units in this multi-loop switching matrix module is 36. Correspondingly, the number of terminals is also 36, and the numbers of the signal input interface and the signal output interface are also 36 respectively.

[0024] Regarding the technical content of the insulation detection and fault location device, the generation method of the positioning current signal of the insulation detection and fault location device in the prior art can be referred to, or the technical content of the insulation detection and fault location device applied by the applicant of this case can be referred to.

[0025] The preferred embodiments of the present invention have been described above with reference to the drawings, but this does not limit the scope of the rights of the present invention. Those skilled in the art can implement the present invention in various variant schemes without departing from the scope and essence of the present invention. For example, the features of one embodiment can be used in another embodiment to obtain another embodiment. Any modification, equivalent replacement and improvement made within the technical concept of the present invention shall fall within the scope of the rights of the present invention.

Claims

1. A multi-circuit switching matrix module, characterized in that include: The shell includes a top surface, a bottom surface, a left side surface, a right side surface, a front side surface, and a rear side surface; The front side and the rear side are respectively provided with a plurality of signal input interfaces and a plurality of signal output interfaces; the signal input interface obtains a positioning current signal from the connected insulation detection and fault positioning device; the housing is also provided with: a number of relay units; A plurality of terminals; the number of the terminals corresponds to the number of the relay units, and each terminal is connected to a corresponding relay unit; each terminal includes an input end and an output end, the input end of each terminal is connected to one of the signal input interfaces; the output end of each terminal is connected to one of the signal output interfaces; and The power supply module is used to supply power to one of the plurality of relay units according to instructions, so that the terminal connected to the relay unit is connected to one of the signal input interfaces and one of the signal output interfaces, so that the positioning current signal is transmitted through the terminal to the field circuit loop connected to the signal output interface.

2. The multi-circuit switching matrix module according to claim 1, characterized in that: It also includes a fixing base for fixing the plurality of relay units and the plurality of terminals on the inner side of the housing.

3. The multi-circuit switching matrix module according to claim 2, characterized in that: The fixed base is a long strip-shaped fixed shaft, the fixed shaft is fixed to the inner wall of the bottom surface, and the relay unit and the terminal are clamped on the fixed shaft side by side.

4. The multi-circuit switching matrix module according to claim 1, characterized in that: The relay units include 24 units.

5. The multi-circuit switching matrix module according to claim 1, characterized in that: The relay units include 36 units.

6. The multi-circuit switching matrix module according to claim 1, characterized in that: The left side surface and the right side surface are provided with heat dissipation holes.

7. The multi-circuit switching matrix module according to claim 1, characterized in that: The top surface includes a convex surface.

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