Multi-path high-pressure density split host

Abstract

The utility model discloses a multipath high pressure density split host, comprising a main body assembly which comprises a front panel, a housing, a wiring terminal board and a display button board; the front panel is inserted into one end of the shell through screws, the wiring terminal board is inserted into the other end of the shell through screws, and the display key board is fixed to one end of the shell and located on the inner side of the front panel. The control assembly comprises an indicating lamp, a main control communication board and a power supply relay board; the indicating lamps are distributed on the surface of the front panel, the main control communication board is fixed to the upper surface of the inner side of the shell, and the power relay board is fixed to the lower surface of the inner side of the shell. The problems that an existing density relay is generally of a mechanical pointer type, data reading depends on manual meter reading, the manual data reading error is large, the efficiency is low, multi-division single-path control is achieved, and wiring is complex and later maintenance is affected when the pressure and density states of multiple paths of air chambers are monitored are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of density relays, in particular to a multi-channel high-voltage density split host machine. Background Art

[0002] Density relay is an instrument used to measure the density of a substance. It usually consists of a sensor and a display. The sensor part can be a pressure sensor, an optical sensor or an acoustic sensor, etc., while the display can show the value. Density relays are often used in laboratories, industrial production and scientific research, such as pharmaceuticals, chemicals, food processing and other industries to detect and control the density of substances. In addition, in the medical field, density relays are also used to measure the density of human tissue to help doctors diagnose diseases.

[0003] However, there are still the following disadvantages in actual use:

[0004] Existing density relays are generally mechanical pointer type, and data reading relies on manual meter reading. Manual data reading has large errors and low efficiency, and is mostly divided into single-channel control. When monitoring the pressure and density status of multiple gas chambers, the wiring is complicated, which affects subsequent maintenance. Summary of the invention

[0005] The purpose of the utility model is to provide a multi-channel high-voltage density split host to solve the problem raised in the above background technology that the existing density relays are generally mechanical pointer type, and the data is read by manual meter reading. The manual reading of data has large errors and low efficiency, and many single-channel controls make the wiring complicated when monitoring the pressure and density status of multiple gas chambers, which affects the subsequent maintenance.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model is a multi-channel high-voltage density split host, comprising:

[0008] A main body assembly, the main body assembly comprising a front panel, a housing, a terminal board and a display keypad;

[0009] The front panel is plugged into one end of the housing by screws, the terminal board is plugged into the other end of the housing by screws, and the display keypad is fixed to one end of the housing and is located inside the front panel;

[0010] A control assembly, the control assembly comprising an indicator light, a main control communication board and a power relay board;

[0011] The indicator lights are distributed on the surface of the front panel, the main control communication board is fixed on the inner upper surface of the shell, and the power relay board is fixed on the inner lower surface of the shell.

[0012] Furthermore, the front panel has a built-in fixed display interface, and the wiring terminals are evenly distributed on the wiring terminal board.

[0013] Furthermore, there are three rows of indicator lights, namely P1, P2, and P3, and each row is provided with a pre-alarm and a locking alarm, and is electrically connected to the display keypad.

[0014] Further, the main control communication board includes a sensor receiving module, an RS485 communication module and a processor module;

[0015] The sensor module, RS485 communication module and processor module are all electrically connected to the display keypad, and the RS485 communication module is also electrically connected to the wiring terminals on the wiring terminal board.

[0016] Furthermore, the RS485 communication module has three channels, one for connecting to the bus, one for uploading to the host computer, and one for uploading to the display.

[0017] Compared with the prior art, the advantages of the present invention are:

[0018] The utility model, through the setting of the control component, sets the display instrument interface on the front panel, can be externally connected to the display instrument, convenient for observing the density relay value, at the same time, through the setting of the three-way indicator light and the three-way RS485 communication module, can realize the processing of the sampling data of the three-way gas chamber pressure and density sensors at the same time.

[0019] This device is used together with the display instrument and several pressure and temperature transmitters to realize all-weather monitoring of the pressure and density status of multiple gas chambers. It can simultaneously process the sampling data of the three-way gas chamber pressure and density sensors. It has the function of digitally displaying the equivalent pressure value after temperature compensation and the automatic alarm output of two-stage gas leakage decompression. It can complete data upload and graphic curve analysis through the RS485 communication interface, providing very convenient conditions for the status inspection and online monitoring of high-voltage equipment. This device has a novel structural design, a compact and beautiful appearance, reliable performance and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 This is a schematic diagram of the appearance of the utility model from a first perspective;

[0022] Figure 2This is a schematic diagram of the appearance of the utility model from a second viewing angle;

[0023] Figure 3 This is a schematic diagram of the interior of the housing of the utility model;

[0024] Figure 4 It is the working process circuit diagram of the utility model;

[0025] Figure 5 This is a working principle diagram of the utility model.

[0026] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0027] 10. Front panel; 11. Shell; 12. Indicator light; 13. Main control communication board; 14. Power relay board; 15. Terminal board; 16. Display key board. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0029] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific implementation methods disclosed below.

[0030] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0031] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0032] See also Figure 1-5 As shown, this embodiment is a multi-channel high-voltage density split host, including:

[0033] The main body assembly includes a front panel 10, a housing 11, a terminal board 15 and a display keypad 16;

[0034] The front panel 10 is plugged into one end of the housing 11 by screws, the terminal board 15 is plugged into the other end of the housing 11 by screws, and the display keypad 16 is fixed to one end of the housing 11 and is located inside the front panel 10;

[0035] The front panel 10, the housing 11 and the terminal board 15 form a closed space. The front panel 10 and the terminal board 15 also play a supporting role. The display keypad 16 is used to fix the indicator light 12 and the keys.

[0036] A control component, the control component includes an indicator light 12, a main control communication board 13 and a power relay board 14;

[0037] The indicator lights 12 are distributed on the surface of the front panel 10, the main control communication board 13 is fixed on the inner upper surface of the housing 11, and the power relay board 14 is fixed on the inner lower surface of the housing 11;

[0038] The indicator light 12 serves as a warning, the main control communication board 13 serves as a fixing, and the power relay board 14 serves as a fixing;

[0039] The front panel 10 has a built-in fixed display interface, and the terminal board 15 has evenly distributed wiring terminals;

[0040] The display interface is used to connect the communication line, and the wiring terminal is used to connect the communication line;

[0041] The indicator lights 12 have three rows, namely P1, P2, and P3, and each row is provided with a pre-alarm and a lock alarm, and is electrically connected to the display keypad 16;

[0042] The three rows of indicator lights 12 correspond to three RS485 communication modules respectively;

[0043] The main control communication board 13 includes a sensor receiving module, an RS485 communication module and a processor module;

[0044] The sensor module, RS485 communication module and processor module are all electrically connected to the display keypad 16, and the RS485 communication module is also electrically connected to the wiring terminals on the wiring terminal board 15;

[0045] The sensor module is used to receive the gas density signal and transmit it to the processor module. The processor module receives the signal, makes analysis and issues instructions. The RS485 communication module can complete data uploading, graphic curve analysis and other tasks.

[0046] The RS485 communication module has three channels, one for connecting to the bus, one for uploading to the host computer, and one for uploading to the display.

[0047] Working principle:

[0048] This device is used together with the display instrument and several pressure and temperature transmitters to realize all-weather monitoring of the pressure and density status of multiple gas chambers. It can process the sampling data of up to three gas chamber pressure and density sensors at the same time. It has the function of digitally displaying the equivalent pressure value after temperature compensation and automatic alarm output for two-stage gas leakage decompression. It can complete data upload and graphic curve analysis through the RS485 communication interface.

[0049] The multi-channel high-voltage density online monitoring alarm device can be installed in the switch cabinet. After connecting the display instrument, the data can be displayed on site. At the same time, the 3-channel data can be judged and the alarm, lockout, overpressure and fault contact output can be made accordingly. The pressure temperature data and action status can be uploaded through the RS485 bus via 2-channel RS485 data bus, one RS485 is uploaded to the host computer, and the other RS485 is uploaded to the display instrument. This device adopts a 3-channel one-to-one correspondence method for the RS485 bus data transmission of 3 pressure and temperature transmitters, and the data receiving method is active data reception.

[0050] In this step, the supporting 3-way transmitter data communication adopts RS485 data bus for active data upload, which avoids the distinction of transmitter addresses and provides very convenient conditions for the status inspection and online monitoring of high-voltage equipment. The device has novel structural design, compact appearance, beautiful appearance, reliable performance, and easy use. It is suitable for use in environments with small panel installation positions. It does not require bus address distinction, avoids transmitter address distinction, and facilitates transmitter interchange and after-sales maintenance.

[0051] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0052] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. Multi-channel high-voltage density split host, characterized in that: include: A main body component, the main body component comprising a front panel (10), a housing (11), a wiring terminal board (15) and a display keypad (16); The front panel (10) is plugged into one end of the housing (11) by means of screws, the terminal board (15) is plugged into the other end of the housing (11) by means of screws, and the display keypad (16) is fixed to one end of the housing (11) and is located inside the front panel (10); A control component, the control component comprising an indicator light (12), a main control communication board (13) and a power relay board (14); The indicator lights (12) are distributed on the surface of the front panel (10), the main control communication board (13) is fixed on the inner upper surface of the housing (11), and the power relay board (14) is fixed on the inner lower surface of the housing (11).

2. The multi-channel high-voltage density split host according to claim 1 is characterized in that: The front panel (10) has a display interface embedded therein, and wiring terminals are evenly distributed on the wiring terminal board (15).

3. The multi-channel high-voltage density split host according to claim 1 is characterized in that: The indicator lights (12) have three rows in total, namely P1, P2, and P3, and each row is provided with a pre-alarm and a locking alarm, and is electrically connected to the display keypad (16).

4. The multi-channel high-voltage density split host according to claim 1, characterized in that: The main control communication board (13) comprises a sensor receiving module, an RS485 communication module and a processor module; The sensor receiving module, RS485 communication module and processor module are all electrically connected to the display keypad (16), and the RS485 communication module is also electrically connected to the wiring terminals on the wiring terminal board (15).

5. The multi-channel high-voltage density split host according to claim 4 is characterized in that: The RS485 communication module has three channels, one for connecting to the bus, one for uploading to the host computer, and one for uploading to the display.

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