General electric control box for rail transit door system
By designing a universal electrical control box for rail transit vehicle door systems, and adopting standardized interfaces and programmable hardware architecture, the problems of poor versatility and insufficient reliability of existing electrical control boxes have been solved, achieving universality and efficient R&D for multiple projects.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU BIDE SCI & TECH CO LTD
- Filing Date
- 2025-09-08
- Publication Date
- 2026-08-04
AI Technical Summary
The electrical control boxes of existing rail transit door systems suffer from poor versatility, low R&D efficiency, and insufficient reliability, resulting in each project needing to design its own hardware circuits and operating interfaces, which wastes resources and increases the risk of failure.
A general electrical control box for rail transit vehicle door systems was designed. It adopts a standardized interface, programmable hardware architecture and flexible human-machine interface, and integrates a power supply module, control module, terminal block and touch screen. It realizes signal input and output control through PLC controller and supports the generalization of multiple projects.
It improves the versatility and reliability of electrical control boxes, simplifies wiring layout, enhances R&D efficiency and fault prevention, and is suitable for the plug-and-play requirements of different projects.
Smart Images
Figure CN224596732U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rail transit vehicle technology, specifically to a general electrical control box for rail transit vehicle door systems. Background Technology
[0002] In the design, development, and testing of rail transit vehicle door systems, it is often necessary to design dedicated electrical control boxes for different projects. These dedicated electrical control boxes typically consist of hardware circuits made up of a large number of electronic components such as timers and counters, and are operated and controlled via physical buttons. However, since the hardware circuits are generally designed independently to meet the functional requirements of different projects, the electrical control boxes for each project differ in hardware structure and user interface, making them unusable across projects. In other words, existing electrical control boxes still have the following defects and shortcomings: (1) Poor versatility: Each project requires independent design of hardware circuits and operating interfaces, which cannot be reused across projects, resulting in a waste of resources; (2) Low R&D efficiency: Each project requires repeated design of the hardware circuit and operation interface of the electrical control box, which is time-consuming and labor-intensive and affects the project progress; (3) Insufficient reliability: The stacking of a large number of electronic components and complex wiring inside the electrical control box increases the risk of circuit failure and reduces the reliability of the control box. Utility Model Content
[0003] To address the aforementioned issues, this utility model provides a universal electrical control box for rail transit vehicle door systems, which effectively solves the problems of poor versatility, low R&D efficiency, and insufficient reliability of existing control boxes.
[0004] This utility model adopts the following technical solution: a general electrical control box for rail transit vehicle door systems, including a box body. The box body is equipped with a power button, an operation button, a touch screen display, and an external interface connector. The box body is equipped with a power module, a control module, a terminal block, a power switch, and a safety relay. Mains power is sequentially connected to the power module through the power switch and the power button to convert the mains power into a DC 110V output. The output terminal of the power button is connected to the control module. The touch screen display is communicatively connected to the control module. The terminal block, operation button, and safety relay are all connected between the DC 110V output terminal of the power module and the control module. The terminal block is connected to the external interface connector.
[0005] Furthermore, the operation buttons include an open button and a close button, and both the open button and the close button are illuminated push-button switches; one end of the contact of the open button and the close button is connected to the DC110V positive output terminal of the power module, one end of the indicator light of the open button and the close button is connected to the DC110V negative output terminal of the power module, the other end of the contact of the open button and the close button is respectively connected to the open signal input terminal and the close signal input terminal of the control module, and the other end of the indicator light of the open button and the close button is correspondingly connected to the open signal output terminal and the close signal output terminal of the control module. Furthermore, the touch display screen adopts a Siemens SMART 700 IE display screen; the control module adopts a PLC controller, and the touch display screen communicates with the control module via Ethernet; Furthermore, the enclosure is equipped with several general indicator lights, which are divided into door opening / closing indicator lights, side indicator lights, isolation indicator lights, fault indicator lights, and safety circuit indicator lights. One end of each of the door opening / closing indicator lights, side indicator lights, isolation indicator lights, fault indicator lights, and safety circuit indicator lights is connected to pin 5 of the safety relay and then to the DC110V negative output terminal of the power module. The other end of each of the door opening / closing indicator lights, side indicator lights, isolation indicator lights, fault indicator lights, and safety circuit indicator lights, as well as pin 6 of the safety relay, are connected to the terminal block. Pin 1 of the safety relay is connected to the DC110V positive output terminal of the power module and to the safety circuit signal input terminal of the control module. Pins 2 and 4 of the safety relay are connected to an external counter after being connected to the terminal block. Furthermore, the external interface connector uses a 20-pin connector.
[0006] The beneficial effects of this utility model are that the enclosure only has a power button, operation button, touch screen and external interface connector, reducing additional components. The enclosure integrates various functional modules, which not only simplifies the wiring layout and facilitates wiring and maintenance, but also facilitates signal input and output control. There is no need to design an electrical control box independently to meet the functional requirements of different projects, thus achieving universality of external interface, hardware logic and software interaction, and has good economic value. Attached Figure Description
[0007] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is an internal connection diagram of this utility model; Figure 3 This is a connection principle diagram of this utility model. Detailed Implementation
[0008] like Figure 1 , Figure 2 , Figure 3 As shown, the general electrical control box for the rail transit vehicle door system of this utility model includes a box body 1. The box body 1 is equipped with a power button 3, an operation button, a touch screen display 6, and an external interface connector 7. The box body 1 contains a power module 8, a control module 11, a terminal block 9, a power switch 12, and a safety relay 10. The mains power is connected to the power module 8 through the power switch 12 and the power button 3 in sequence to convert the mains power into DC 110V output. The output terminal of the power button 3 is connected to the control module 11. The touch screen display 6 is communicatively connected to the control module 11. The terminal block 9, the operation button, and the safety relay 10 are all connected between the DC 110V output terminal of the power module 8 and the control module 11. The terminal block 9 is connected to the external interface connector 7.
[0009] The operation buttons include an open door button 5 and a close door button 4. The power button 3, open door button 5, and close door button 4 all use illuminated push-button switches. One end of the contact of the open door button 5 and the close door button 4 is connected to the DC110V positive output terminal of the power module 8. One end of the indicator light of the open door button 5 and the close door button 4 is connected to the DC110V negative output terminal of the power module 8. The other end of the contact of the open door button 5 and the close door button 4 is respectively connected to the open door signal input terminal and the close door signal input terminal of the control module 11. The other end of the indicator light of the open door button 5 and the close door button 4 is connected to the open door signal output terminal and the close door signal output terminal of the control module 11.
[0010] The touch screen 6 uses a Siemens SMART 700 IE display to show project parameters and supports user switching of projects and parameter settings. The control module 11 uses a PLC controller, and the touch screen 6 communicates with the control module 11 via Ethernet. The external interface connector 7 uses a 20-pin connector, which can be either a 110VDC version (Tyco 178289-8) or a 24VDC version (Tyco 1-917659-8). The pins of the external interface connector 7 can cover power supply, control signals (zero speed, enable, centralized door opening and closing, etc.), safety circuits, and spare interfaces, thereby achieving unified docking with different door systems and enabling plug-and-play functionality.
[0011] The enclosure 1 is equipped with several general indicator lights 2, which are divided into door opening / closing indicator lights 13, side indicator lights 14, isolation indicator lights 15, fault indicator lights 16, and safety circuit indicator lights 17. One end of the door opening / closing indicator lights 13, side indicator lights 14, isolation indicator lights 15, fault indicator lights 16, and safety circuit indicator lights 17 is connected to pin 5 of the safety relay 10 and then connected to the negative DC 110V output terminal of the power module 8. The other end of the door opening / closing indicator lights 13, side indicator lights 14, isolation indicator lights 15, fault indicator lights 16, and safety circuit indicator lights 17, and pin 6 of the safety relay 10 are all connected to terminal block 9. Pin 1 of the safety relay 10 is connected to the positive DC 110V output terminal of the power module 8. Pin 1 of the safety relay 10 is also connected to the safety circuit signal input terminal of the control module 11. Pins 2 and 4 of the safety relay 10 are connected to an external counter (not shown in the figure) via terminal block 9. Among them, the terminal block 9 serves as the internal wiring harness assembly of the electronic control box, which can connect the power module 8, the control module 11 and the standardized external interface connector 7, thereby simplifying the wiring layout and facilitating wiring and maintenance. The safety relay 10 can be used to realize signal conversion, and can be connected to an external counter through the terminal block 9 to realize door opening and closing counting; The control module 11 stores multiple control parameters (such as door opening and closing signal duration, count, etc.). The control module 11 is connected to the external interface connector 7 through the terminal block 9 to realize signal input and output control. The input terminals of the control module 11 include door opening signal input, door closing signal input, and safety circuit signal input. The output terminals of the control module 11 include zero speed signal, enable signal, door opening signal, door closing signal, re-opening and closing signal, unlocking prohibition signal, keep closed signal, network signal, boarding and alighting signal, and special control signals, etc. The aforementioned input or output signals are all stored as parameters based on different existing projects, and are set according to the actual situation.
[0012] This utility model can be plugged and used with different vehicle door systems, solving the problems of poor versatility, low R&D efficiency and insufficient reliability of traditional electrical control boxes. Through standardized interfaces, programmable hardware architecture and flexible human-machine interface, it can realize the hardware control logic of different projects (such as safety circuit monitoring, signal output timing, etc.) by using program switching in PLC controller. It can quickly adapt to different project requirements, that is, achieve "one design, multiple projects universal", improve R&D efficiency and reliability, and is especially suitable for the debugging, testing and control of vehicle door systems.
[0013] Figure 3 In this context, PE serves as the grounding terminal, protecting the grounding wire terminal; N is the neutral wire, and L is the live wire.
[0014] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0015] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A general electrical control box for rail transit vehicle door systems, comprising a box body, characterized in that: The enclosure is equipped with a power button, an operation button, a touch screen, and an external interface connector. Inside the enclosure are a power module, a control module, a terminal block, a power switch, and a safety relay. AC mains power is sequentially connected to the power module via the power switch and the power button to convert AC mains power into a DC 110V output. The output terminal of the power button is connected to the control module. The touch screen is communicatively connected to the control module. The terminal block, operation button, and safety relay are all connected between the DC 110V output terminal of the power module and the control module. The terminal block is connected to the external interface connector.
2. The general electrical control box for rail transit vehicle door system according to claim 1, characterized in that: The operation buttons include an open button and a close button, both of which are illuminated push-button switches. One contact end of each open and close button is connected to the DC110V positive output terminal of the power module, and one indicator light end of each open and close button is connected to the DC110V negative output terminal of the power module. The other contact ends of each open and close button are respectively connected to the open signal input terminal and the close signal input terminal of the control module, and the other end of the indicator light of each open and close button is correspondingly connected to the open signal output terminal and the close signal output terminal of the control module.
3. The general electrical control box for rail transit vehicle door system according to claim 1, characterized in that: The touch screen uses a Siemens SMART 700 IE display; the control module uses a PLC controller, and the touch screen communicates with the control module via Ethernet.
4. The general electrical control box for rail transit vehicle door system according to claim 2, characterized in that: The enclosure is equipped with several general indicator lights, which are divided into door opening / closing indicator lights, side indicator lights, isolation indicator lights, fault indicator lights, and safety circuit indicator lights. One end of each of the door opening / closing indicator lights, side indicator lights, isolation indicator lights, fault indicator lights, and safety circuit indicator lights is connected to pin 5 of the safety relay and then to the DC110V negative output terminal of the power module. The other end of each of the door opening / closing indicator lights, side indicator lights, isolation indicator lights, fault indicator lights, and safety circuit indicator lights, as well as pin 6 of the safety relay, are connected to the terminal block. Pin 1 of the safety relay is connected to the DC110V positive output terminal of the power module and to the safety circuit signal input terminal of the control module. Pins 2 and 4 of the safety relay are connected to an external counter after being connected to the terminal block.
5. The general electrical control box for rail transit vehicle door system according to claim 1, characterized in that: The external interface connector uses a 20-pin connector.