CN114051340B

CN114051340B - Hydrogen filling controller based on modularized design

Info

Publication number: CN114051340B
Application number: CN202111370888.4A
Authority: CN
Inventors: 蒋华
Original assignee: Zhangjiagang Hydrocore Electric System Technology Co ltd
Current assignee: Zhangjiagang Hydrocore Electric System Technology Co ltd
Priority date: 2021-11-18
Filing date: 2021-11-18
Publication date: 2023-10-13
Anticipated expiration: 2041-11-18
Also published as: CN114051340A

Abstract

The application relates to a modularized design-based hydrogen filling controller, which comprises an execution circuit, an explosion-proof box and a control device, wherein the execution circuit is packaged in the explosion-proof box, the control device comprises a shell, a display screen and an input keyboard, a keyboard connecting seat is arranged on the shell, the keyboard connecting seat is connected with the input keyboard through a keyboard bus, the keyboard connecting seat is connected with the execution circuit through an intrinsic safety cable, and a keyboard driving circuit for driving the input keyboard and a display driving circuit for driving the display screen are both intrinsic safety driving circuits. The application can overcome the defects of the prior art, can reduce the production cost, can also meet the intrinsically safe explosion-proof requirement, and can ensure the safety of the hydrogen filling work.

Description

Hydrogen filling controller based on modularized design

Technical Field

The application relates to a hydrogen filling controller based on a modularized design.

Background

When the hydrogen energy power vehicle is filled with hydrogen, the hydrogen needs to be filled and controlled. Because of the explosion-proof requirement of the hydrogen environment, the traditional hydrogen filling control method is to install an execution circuit, an interaction circuit and a control circuit in a heavy and airtight explosion-proof box, so that the aim of explosion-proof safety can be achieved. However, this conventional structure makes interaction very difficult, because the interaction and control cannot be performed conveniently and simply through thick steel plates or glass, and for this reason, various solutions have been developed, and generally adopted:

1. an infrared hand controller: the glass is interacted with a circuit in the explosion-proof box in an infrared communication mode, but the circuit structure is complex, so that the cost is high;

2. the complex interaction is abandoned, and a plurality of buttons are simplified, so that the structure is simplified, the safety can be ensured to a certain extent, but the optimization of the operability is abandoned, and the operability and the flexibility are greatly discounted;

3. this can lead to a significant increase in safety hazards in other ways that do not meet the requirements of the explosion proof regulations.

Therefore, how to realize the hydrogen filling control in the hydrogen environment is a technical problem which needs to be solved at present.

Disclosure of Invention

The application aims to provide a hydrogen filling controller based on a modularized design, which can overcome the defects of the prior art, can reduce the production cost, can also meet the intrinsically safe explosion-proof requirement, and can ensure the safety of hydrogen filling work.

In order to achieve the above purpose, the application adopts the following technical scheme:

the application provides a hydrogen filling controller based on modularized design, which comprises an execution circuit, an explosion-proof box and a control device, wherein the execution circuit is packaged in the explosion-proof box, the control device comprises a shell, a display screen and an input keyboard, a keyboard connecting seat is arranged on the shell, the keyboard connecting seat is connected with the input keyboard through a keyboard bus, the keyboard connecting seat is connected with the execution circuit through an intrinsic safety cable, and a keyboard driving circuit for driving the input keyboard and a display driving circuit for driving the display screen are all intrinsic safety driving circuits.

For the above solutions, the applicant has further optimisation.

Optionally, the control device further comprises an RS232 communication interface, and the external device is connected to the RS232 communication interface through a communication isolation gate, so as to be used for intrinsically safe communication connection between the external device and the control device.

Optionally, the control device further comprises two paths of intrinsically safe switching value input wiring terminals, and the two external groups of mechanical buttons are respectively and electrically connected with the two paths of switching value input wiring terminals.

Optionally, the control device further comprises a power input connection terminal, to which an external power source is connected via a power isolation barrier, for intrinsically safe power connection of the external power source to the control device prosthesis.

Due to the application of the technical scheme, compared with the prior art, the application has the following advantages:

the hydrogen filling controller based on the modularized design can make other electric circuits which need frequent interaction such as a display screen, an input keyboard for input interaction and the like into intrinsic safety, integrally install the electric circuits in an intrinsic safety shell, and encapsulate a specific executive circuit which is easy to generate electric sparks in an explosion-proof box, wherein the shell is arranged independently of the explosion-proof box, so that the volume of the explosion-proof box can be reduced, the cost is convenient and unknown, the shape of the shell is not limited, the electric circuits can be specifically customized according to the requirements of users, the individuation degree is higher, and the requirements of users can be better met.

Furthermore, the intrinsically safe design is adopted for the communication interface, the switching value input, the power input and the like, so that the peripheral control device can meet the intrinsically safe requirement, the explosion resistance is good, the reliability of signal input is ensured, and the interactivity of the control device is enriched.

Drawings

Some specific embodiments of the application will be described in detail hereinafter by way of example and not by way of limitation with reference to the accompanying drawings. The same reference numbers will be used throughout the drawings to refer to the same or like parts or portions. It will be appreciated by those skilled in the art that the drawings are not necessarily drawn to scale. In the accompanying drawings:

fig. 1 is a schematic diagram of a hydrogen filling controller based on a modular design according to one embodiment of the application.

The reference numerals are as follows:

1. an execution circuit;

2. an explosion-proof box;

3. the control device comprises a control device 31, a shell 32, a display screen 33, an input keyboard 34, an RS232 communication interface 35, a switching value input wiring terminal 36, a power supply input wiring terminal 37 and a keyboard connecting seat;

41. display drive circuit, 42, keyboard drive circuit.

Detailed Description

The following description of the embodiments of the present application will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the application are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

In addition, the technical features of the different embodiments of the present application described below may be combined with each other as long as they do not collide with each other.

The embodiment describes a hydrogen filling controller based on modular design, as shown in fig. 1, the hydrogen filling controller comprises an execution circuit 1, an explosion-proof box 2 and a control device 3, wherein the execution circuit 1 is packaged in the explosion-proof box 2, the control device 3 comprises a shell 31, a display screen 32 and an input keyboard 33, a keyboard connecting seat 37 is arranged on the shell 31, the keyboard connecting seat 37 is connected with the input keyboard 33 through a keyboard bus, the keyboard connecting seat 37 is connected with the execution circuit 1 through an intrinsic safety cable, and a keyboard driving circuit 42 for driving the input keyboard 33 and a display driving circuit 41 for driving the display screen 32 are all intrinsic safety driving circuits.

The hydrogen filling controller based on modular design of this embodiment can make the display screen 32 and the input keyboard 33 for input interaction and other electric circuits needing frequent interaction into intrinsic safety, and integrate and install the electric circuits in the intrinsic safety shell 31, and encapsulate the specific executing circuit 1 which is easy to generate electric sparks in the explosion-proof box 2, the shell 31 is independent of the explosion-proof box 2, thus the volume of the explosion-proof box 2 can be reduced, the convenience is unknown, the cost is reduced, the shape of the shell 31 is not limited, the specific customization can be performed according to the user requirement, the individuation degree is higher, and the user requirement can be better satisfied.

Optionally, the control device 3 further includes an RS232 communication interface 34, and the external device is connected to the RS232 communication interface 34 through a communication isolation gate, so as to be used for intrinsically safe communication connection between the external device and the control device 3.

Optionally, the control device 3 further includes two intrinsically safe switching value input terminals 35, and the two external mechanical buttons are electrically connected to the two switching value input terminals 35.

Optionally, the control device 3 further comprises a power input connection 36, an external power source being connected to the power input connection 36 via a power isolation barrier for intrinsically safe power connection of the external power source to the control device 3.

The intrinsically safe design is adopted for the communication interface, the switching value input, the power input and the like, so that the peripheral control device 3 can meet the intrinsically safe requirement, the explosion resistance is good, the reliability of signal input is ensured, and the interactivity of the control device 3 is enriched.

The above embodiments are only for illustrating the technical concept and features of the present application, and are intended to enable those skilled in the art to understand the present application and to implement the same, but are not intended to limit the scope of the present application, and all equivalent changes or modifications made according to the spirit of the present application should be included in the scope of the present application.

Claims

1. The utility model provides a hydrogen filling controller based on modularized design, its characterized in that, including execution circuit, explosion-proof box and controlling means, execution circuit is the execution circuit that produces the electric spark easily, only sealed in the explosion-proof box have execution circuit, controlling means includes casing, display screen, input keyboard, keyboard drive circuit, display drive circuit, be provided with the keyboard connecting seat on the casing, the keyboard connecting seat with link to each other through the keyboard bus between the input keyboard, the keyboard connecting seat passes through intrinsic safety cable connection execution circuit, wherein, controlling means is independent of explosion-proof box setting, and it is through intrinsic safety cable and explosion-proof box looks length controllable connection, and right keyboard drive circuit that input keyboard driven, the display drive circuit that drives the display screen adopt all intrinsic safety type drive circuit.

2. The modular design-based hydrogen fueling controller of claim 1 wherein the control means further comprises an RS232 communication interface, wherein the external device is coupled to the RS232 communication interface via a communication barrier for intrinsically safe communication connection between the external device and the control means.

3. The hydrogen filling controller based on modular design of claim 1, wherein the control device further comprises two intrinsically safe switching value input terminals, and the two external sets of mechanical buttons are electrically connected to the two switching value input terminals, respectively.

4. The modular design-based hydrogen filling controller of claim 1, wherein the control device further comprises a power input terminal to which an external power source is connected through a power isolation barrier for intrinsically safe power connection of the external power source to the control device prosthesis.