High-voltage program-controlled matrix switch device

Abstract

The utility model discloses a high-voltage program-controlled matrix switch device, which comprises an upper shell and a lower shell which are fixedly connected together up and down, an upper shielding cavity is formed in the upper shell, a plurality of PCBs are sequentially installed and fixed in the upper shielding cavity in a laminated mode through a plurality of fixing studs, each PCB comprises a matrix switch composed of a plurality of relays, and the PCBs are connected in series through board cards so that signal output ports can be expanded; a wiring groove facilitating cable wiring and a power source fixing frame facilitating installation of a power source module are regularly arranged in the lower shell, and a power source interface, a communication interface and a power source switch are regularly arranged on a rear panel of the lower shell. According to the high-voltage program-controlled matrix switch device, the multi-layer PCB and the relay are combined with the board cards to serve as main devices, and the output ports are expanded in a mode of connecting the board cards in series. Therefore, a small number of input ports and a large number of output ports are realized, the requirement of multi-channel communication is met, and the signal management efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic devices, in particular to a high-voltage program-controlled matrix switch device. Background Art

[0002] In today's high-tech fields, especially in power electronics, high-voltage experiments, automatic test equipment (ATE) and other industries, high-voltage matrix switches play a vital role. With the development of technology, higher requirements are placed on the flexibility, safety and efficiency of signal transmission under high-voltage environments. As a key component, the main responsibility of high-voltage matrix switches is to achieve accurate and safe switching of high-voltage signals between different test channels to meet increasingly complex test requirements and system integration.

[0003] Existing high-voltage matrix switch technologies mainly focus on improving the withstand voltage level, enhancing signal isolation performance, and optimizing the fast response capability of the switch. At the same time, some matrix switch designs have introduced programmable functions to adapt to changing signal management requirements.

[0004] Defects and shortcomings of the existing technology:

[0005] Isolation performance limitations: Although existing technologies have made efforts to improve isolation between channels, there is still a risk of signal crosstalk in extreme high-voltage environments, affecting test accuracy and safety.

[0006] Integration and flexibility: As system complexity increases, existing high-voltage matrix switches sometimes cannot meet the requirements of highly integrated and multifunctional test platforms in terms of channel count and control flexibility.

[0007] Cost and maintenance: The high performance requirements of high-voltage matrix switches are often accompanied by high manufacturing costs, and maintenance and troubleshooting under harsh working conditions are more complicated, increasing the cost of use and maintenance.

[0008] Insufficient intelligence: Only some products support basic programmable functions. Utility Model Content

[0009] The utility model provides a high-voltage program-controlled matrix switch device with low cost, simple structure and high flexibility.

[0010] The technical solution adopted by the utility model to solve its technical problems is:

[0011] A high-voltage program-controlled matrix switch device comprises a housing, wherein the housing comprises an upper housing and a lower housing fixedly connected together;

[0012] An upper shielding chamber is provided inside the upper shell, and a plurality of PCB boards are stacked and fixed in the upper shielding chamber in sequence through a plurality of fixing studs, the PCB boards include a matrix switch composed of a plurality of relays, and the plurality of PCB boards are connected in series through board cards to expand the signal output port;

[0013] A plurality of signal output channel interfaces are regularly arranged on the front panel of the upper housing, and the plurality of signal output channel interfaces constitute a signal output channel panel. A plurality of signal input channel interfaces are regularly arranged on the rear panel of the upper housing, and the plurality of signal input channel interfaces constitute a signal input channel panel.

[0014] The plurality of signal input channel interfaces are electrically connected to the plurality of signal input ports on the plurality of PCB boards in a one-to-one manner through cables, and the plurality of signal output channel interfaces are electrically connected to the plurality of signal output ports on the plurality of PCB boards in a one-to-one manner through cables;

[0015] The interior of the lower shell is regularly provided with wiring grooves for convenient cable routing and a power supply fixing frame for convenient installation of the power supply module, and the rear panel of the lower shell is regularly provided with a power supply interface, a communication interface and a power switch.

[0016] Furthermore, the upper shell and the lower shell adopt a rectangular shell with consistent length and width. When the upper shell and the lower shell are fixedly connected together up and down, they form a large rectangular shell; the upper shell and the lower shell both include a front panel on the front side, a rear panel on the rear side, a base plate and an upper plate at the bottom, and the upper plate includes a top panel and side panels on the left and right sides. The front panel, the rear panel, the base plate and the upper plate together form a rectangular upper shell and a rectangular lower shell.

[0017] Furthermore, the fixing stud has a threaded column at one end and a threaded hole at the other end, and two adjacent fixing studs can be tightened end to end to cooperate with each other to stack and install the PCB boards together in sequence.

[0018] Furthermore, the relay adopts a high-voltage reed switch relay.

[0019] Furthermore, handles are regularly arranged on the front and back or left and right sides of the upper shell to facilitate extraction.

[0020] Furthermore, the bottom plate of the upper shell and the upper plate of the lower shell are both provided with upper and lower openings to form wiring openings.

[0021] The beneficial effects of the utility model are:

[0022] 1. The high-voltage program-controlled matrix switch device of the utility model has a simple and reasonable structure. It adopts multi-layer PCB boards and relay-combined boards as main components, and expands the output ports by connecting the boards in series. Thus, a small number of input ports and a large number of output ports are realized, which meets the needs of multi-channel communication and greatly improves the signal management efficiency.

[0023] 2. The PCB board of the utility model is stacked and suspended in the shielding chamber of the shell through a plurality of fixing studs, which is highly flexible, thus facilitating the configuration and expansion of input and output ports and meeting the use requirements of different scenarios. And through the isolation of the shielding chamber, the signal crosstalk problem in extreme high-voltage environments can be reduced or avoided, and the test accuracy and safety can be improved.

[0024] 3. The utility model has low cost, simple and flexible structure through the design of upper and lower shells, which is convenient for early assembly and later maintenance.

[0025] 4. The utility model is provided with a plurality of communication interfaces, and the relays on the PCB board can be controlled by the PLC programmable controller to realize the automatic control of the high-voltage matrix switch, and can better cooperate with the automatic detection equipment to realize the automatic detection work. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a three-dimensional structural diagram of the utility model;

[0027] Figure 2 for Figure 1 Explosion state diagram;

[0028] Figure 3 for Figure 1 Front view of

[0029] Figure 4 for Figure 1 Rear view of

[0030] Figure 5 This is a diagram illustrating the principle of a matrix switch according to an embodiment of the utility model;

[0031] Figure 6 This is a schematic diagram of the output port expansion of the matrix switch of an embodiment of the utility model;

[0032] The markings in the figure are:

[0033] 1. Upper housing; 101. upper housing front panel, 102. upper housing rear panel, 103. upper housing bottom plate, 104. upper housing upper plate, 105. upper shielding chamber;

[0034] 11. Handle, 12. Fixing stud, 13. PCB board;

[0035] 2. Lower housing; 201. front panel of lower housing, 202. rear panel of lower housing, 203. bottom plate of lower housing, 204. upper plate of lower housing, 205. top plate of lower housing;

[0036] 21. Wire duct, 22. Power supply fixing frame;

[0037] 1011, signal output channel interface, 1012, signal output channel panel, 1021, signal input channel interface, 1022, signal input channel panel;

[0038] 2021. power interface, 2022. communication interface, 2023. power switch. DETAILED DESCRIPTION

[0039] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0041] like Figure 1-4 As shown, the utility model discloses a high-voltage program-controlled matrix switch device, including a housing, wherein the housing includes an upper housing 1 and a lower housing 2 that are fixedly connected together. The upper housing and the lower housing are both rectangular housings, and their length and width are consistent, but their heights are different, so that after being connected and fixed up and down, a large rectangular housing is formed.

[0042] Further, such as Figure 1 As shown, the front and rear panels or the left and right panels of the upper housing 1 are regularly provided with handles 11 for convenient lifting of the high-voltage program-controlled matrix switch device. Figure 1 As shown, the handles 11 are respectively arranged on the left and right sides of the front panel of the upper shell and the rear panel of the upper shell.

[0043] In one embodiment, if Figure 2As shown, the upper shell 1 includes an upper shell front panel 101, an upper shell rear panel 102, an upper shell bottom panel 103 and an upper shell upper panel 104, which together form a rectangular upper shell. The upper shell front panel 101, the upper shell rear panel 102 and the upper shell bottom panel 103 respectively form a front panel, a rear panel and a bottom panel of the rectangular upper shell, and the upper shell upper panel 104 includes a top panel and side panels on the left and right sides of the rectangular upper shell.

[0044] Furthermore, the inner chamber of the rectangular upper shell forms an upper shielding chamber 105, in which a plurality of PCB boards 13 are stacked and fixed in sequence through a plurality of fixing studs 12. The fixing studs 12 are fixing studs with a threaded column at one end and a threaded hole at the other end, so that the ends can cooperate with each other and be stacked and assembled in sequence.

[0045] Further, such as Figure 2 As shown, a plurality of PCB boards 13 are stacked and suspended in the upper shielding chamber 105 in sequence through a plurality of fixing studs 12 , and the four corners of each layer of PCB boards are stacked and suspended together in sequence through four fixing studs 12 .

[0046] In one embodiment, if Figure 2 As shown, the lower housing 2 also includes a lower housing front panel 201, a lower housing rear panel 202, a lower housing bottom plate 203 and a lower housing upper plate 204. The front panel, rear panel, bottom plate and upper plate of the lower housing adopt the same design as the upper housing, and together form a rectangular lower housing, and the lower housing upper plate 204 also includes a top panel and side panels on the left and right sides.

[0047] Furthermore, the inner chamber of the rectangular lower housing forms a lower housing chamber. A lower housing top plate 205 is also arranged and installed on the inner side of the top panel of the lower housing upper plate 204, and a wiring trough 21 and a power supply fixing frame 22 are further regularly arranged and installed on the lower end of the lower housing top plate 205. The wiring trough 21 is used for wiring of internal cables, and the power supply fixing frame 22 is used for installing and fixing the power supply module.

[0048] Furthermore, wiring openings for convenient cable passage are provided at the same positions on the upper shell bottom plate 103 and the lower shell upper plate 204 .

[0049] Further, such as Figure 3 and Figure 4 As shown, a plurality of signal output channel interfaces 1011 are regularly arranged on the upper housing front panel 101, thereby forming a signal output channel panel 1012 on the upper housing front panel 101. A plurality of signal input channel interfaces 1021 are regularly arranged on the upper housing rear panel 102, thereby forming a signal input channel panel 1022 on the upper housing rear panel 102.

[0050] In one embodiment, the upper housing rear panel is provided with 12 signal input channel interfaces 1021, and the upper housing front panel is provided with 18 signal output channel interfaces 1011, so that the three-layer PCB board is connected in series to realize the input of 12 channels and the output of 18 channels. Of course, the output channel interface can be further expanded by connecting the PCB boards in series.

[0051] Further, such as Figure 4 As shown, a power interface 2021 , a communication interface 2022 and a power switch 2023 are regularly arranged on the rear panel 202 of the lower housing.

[0052] like Figure 5 As shown in FIG. 1 , it is a principle diagram of a matrix switch in an embodiment. In this embodiment, the matrix switch takes a 4*4 matrix input / output as an example. Four horizontal lines and four vertical lines are set on a single PCB board 13, forming a total of 16 intersections. A relay switch is installed at each intersection position, and the on-off control of the intersection is realized by opening and closing the relay switch. Among them, X1~X4 are output ports, and Y1~Y4 are input ports, so that four channels of input and four channels of output are formed on a single PCB board.

[0053] Further, such as Figure 5 As shown, taking the closure of the X1Y1 intersection switch in the dotted box on the right as an example, when the relay at the X1Y1 intersection is closed, the X1 output terminal and the Y1 input terminal are connected, while other positions are in the open state, and other input and output terminals are in the disconnected state.

[0054] Preferably, the relay uses a high-voltage reed switch relay as the core switch element, which works well under high-voltage conditions, has high cost performance and long service life. The structure has its own internal power supply, high space utilization, and high matrix switch integration.

[0055] Further, such as Figure 2 and Figure 6 As shown, we expand the input port of the three-layer PCB board by connecting the boards in series, so that four channels of input (Y1~Y4) and twelve channels of output (X1~X12) can be realized.

[0056] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high voltage program-controlled matrix switch device, comprising a housing, characterized in that: The housing comprises an upper housing and a lower housing fixedly connected together; An upper shielding chamber is provided inside the upper shell, in which a plurality of PCB boards are stacked and fixed in sequence through a plurality of fixing studs, the PCB boards include a matrix switch composed of a plurality of relays, and the plurality of PCB boards are connected in series through board cards to expand the signal output port; A plurality of signal output channel interfaces are regularly arranged on the front panel of the upper housing, and the plurality of signal output channel interfaces constitute a signal output channel panel. A plurality of signal input channel interfaces are regularly arranged on the rear panel of the upper housing, and the plurality of signal input channel interfaces constitute a signal input channel panel. The plurality of signal input channel interfaces are electrically connected to the plurality of signal input ports on the plurality of PCB boards in a one-to-one manner through cables, and the plurality of signal output channel interfaces are electrically connected to the plurality of signal output ports on the plurality of PCB boards in a one-to-one manner through cables; The interior of the lower shell is regularly provided with wiring grooves for convenient cable routing and a power supply fixing frame for convenient installation of the power supply module, and the rear panel of the lower shell is regularly provided with a power supply interface, a communication interface and a power switch.

2. A high voltage program-controlled matrix switch device as claimed in claim 1, characterized in that: The upper shell and the lower shell are rectangular shells with consistent length and width. When the upper shell and the lower shell are fixedly connected together up and down, they form a large rectangular shell; the upper shell and the lower shell both include a front panel on the front side, a rear panel on the rear side, a base plate and an upper plate at the bottom, and the upper plate includes a top panel and side panels on the left and right sides. The front panel, the rear panel, the base plate and the upper plate together form a rectangular upper shell and a rectangular lower shell.

3. A high voltage program-controlled matrix switch device as claimed in claim 1, characterized in that: The fixing studs are fixing studs with a threaded column at one end and a threaded hole at the other end. Two adjacent fixing studs can be tightened together end to end to stack and install the PCB boards together in sequence.

4. A high voltage program-controlled matrix switch device as claimed in claim 1, characterized in that: The relay is a high voltage reed switch relay.

5. A high voltage program-controlled matrix switch device according to any one of claims 1 to 4, characterized in that: Handles are regularly arranged on the front and rear or left and right sides of the upper shell for easy extraction.

6. A high voltage program-controlled matrix switch device as claimed in claim 5, characterized in that: The bottom plate of the upper shell and the upper plate of the lower shell are both opened up and down to form wiring openings.

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